Biology General MCQs The Most Important Set 7

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1 - Schwann cells by other name are

neurolemmocytes

2 - If cell body gives rise to only one axon then the neuron is known as

unipolar

3 - If there is projection of one axon and one dendrite the neuron is known as

dipolar

4 - If the cell body give rise to several dendrites and one axon the neuron is known as

multipolar

5 - Neurons in the retina of eyes are

unipolar

6 - During routine life if a person suffers hypertension and shows aggressive behaviour then which horme you think is in excess

both a and c

7 - Which hormone is glucocorticoid in nature

cortisone

8 - Which one is the mineralocorticoid hormone

aldosterone

9 - Undersecretion of cortical hormones leads to which disease

Addisons disease

10 - Over secretion of cortical hormones can become cause of which disease

cushing's disease

11 - Andorgen hormone in both male and female is produced form

Adrenal gland

12 - Graffian follicles under the stimulation of FSH secrete which hormone

Estrogen

13 - Hormone responsible.for secondary sexual characteristics in female is

Estrogen

14 - Which hormone is involved in healing and repair of uterine wall after menstruation

Estrogen

15 - Polycystic ovaries and fibroids are caused due to over secretion of which hormone

Estrogen

16 - Involuntary tremors,diminished motor power and rigidity are associated with

Parkinson's

17 - Diminished motor power is due to

lack of dopamine

18 - Aluminum is saib to contribute in the onset of which disease

Alzheimer's

19 - Production of abnormal mass of neuroglial cells due to uncontrolled cell division is found in

tumour

20 - Cause of secondary headache

both b and c

21 - Electroencephalography pattern is called as

brain waves

22 - Electrical activity of neruroms is recorded in a technique known as

Electroencephalography

23 - CT Scan stands for

computed tomography

24 - CT scan uses______ rays to prduce three dimensional images of internal organs

X rays

25 - MRI is used for diagnosis of

nervous disorder

26 - Thyroid glands are located either sides of

trachea

27 - Which of the following is not the hormone of thyroid gland

Oxytocin

28 - Thyroxine contains how many iodine atoms

4

29 - Development of nervous system in foetus and infants is promoted by hormone of which gland

thyroid gland

30 - Graves disease is due to

over secretion of T3 and T4

31 - Hypothyroidism in adult cause which syndrome

myxedema

32 - Cretinism is under secretion of thyroid hormone in

infants

33 - Hormones secreted by kidneys

All

34 - Blood pressure is monitored by which hormone of kidney

renin

35 - Which hormone acts on bone marrow to increase th production of red blood cells

erythropoietin

36 - Premature fruit drop is inhibited by

2,4dicholoro phenoxy acetic acid

37 - At commercial level Gibberellins are produced by

fungal culture

38 - Bolting of some rosette plants is done by

Gibberellins

39 - Which hormone is responsible for bud break and seed dormancy

Gibberellins

40 - Substitute of red light is

Gibberellins

41 - Which hormone is used in brewing industry

Gibberellins

42 - Plant growth is generally inhibited by

both b and c

43 - Flowering in pineapple is due to which chemical

ethene

44 - Commercial compound ethephone is obtained from

ethene

45 - Elements of nervous coordination

All

46 - Neuron can conduct how much impulses per second

250

47 - In human non myelinated fibers speed of nerve impulse is about

1 to 3 meter per second

48 - Speed of nerve impulse in myelinated fibers

120meters per second

49 - Speed of nerve impulse is faster in myelinated fibers because of

both a and b

50 - In saltatory mode of conduction the action potential is actually generated at

nodes of Ranvier

51 - Junction between the axon of one neuron and dendrites of other neuron is

synapse

52 - The gap between the presynaptic and post synaptic neuron is known as

synaptic cleft

53 - A neuron which recieves the impulse after it crosses the synapse is

post synaptic neuron

54 - A neuron which carries an impulse toward the synapse is

presynaptic neuron

55 - Movement of impulse across the synapse is called

synaptic transmission

56 - In pathway or impluse toward CNS stiumuls pass from sensory neuron to

associative neurons

57 - Order from brain towards effectors is brought by

motor neurons

58 - Best example of effectors is

both a and b

59 - Rods and cones in the eyes are the examples of which type of receptors

photoreceptor

60 - Osmolarity of blood is detected by which receptors

both a and b

61 - Basic structural and functional unit of nervous system is

neuron

62 - Nucleus is found in which part of neuron

cell body

63 - Synapses are formed by

axons and dendrites

64 - Main function of dendrites is to

both b and c

65 - Rough endoplasmic reticulum and ribosomes in the form of groups are called

both a and b

66 - Behaviour depends upon

all

67 - Which factor plays a role in development of behaviour

genes

68 - Types of innate behaviour

All

69 - taxis and tropisms are the types of which behaviour

orientation behaviour

70 - Directed movement towards or away from stimuls is known as

taxis

71 - Growth movement related to directional stimuli are known as

tropisms

72 - Reflexes and instincts are the types of

non orientation behaviour

73 - Responses to inside or out side stimuli which we cannot stop and even we are not aware that its happening are called

Reflexes

74 - Coughing when food particle touches the windpipe is related to which type of behaviour

non orientational reflex behaviour

75 - Unlearned inherited fixed learned patterns are called

instincts

76 - Which type of behaviour is advantageous for animals with short life span

instinctive behaviour

77 - Imprinting that is limited to specific time period and is

irreversible

78 - If an animal shows same response for two different stimuli the type of behaviour is known as

calssical conditioning

79 - Experiments on dog's salivation was performed by which one

Pavlov

80 - When an animal learns a specific response to a particular stimuls by many unsuccessful tries is which type Learning

both a and b

81 - Trial and error learning was studied by which psychologist

B.F skinner

82 - Association of indifferent stimuli without patent reward is known as

latent learning

83 - Learning by insight was fisrt described by

Wolfgang kohler

84 - Hostile and Helpful intraspecific interactions are which type of behaviour

social behaviour

85 - Group of animals that may be together but do not interact behaviourally is called as

aggregation

86 - In sensation of touch stimulus how many types of nerve endings are found in skin

three

87 - Skin receptors are concerned with how many types of sensations

Five

88 - At the base of hair ,hair end organs act as

mechanoreceptors

89 - Receptors of pressure change are called

Pacinian corpuscles

90 - Receptors which are related to sensation of touch are specifit known as

Miessner's corpusceles

91 - Ground vibrations are detected by which receptors in terrestrial vertebrates

receptors in joints

92 - Pain receptors are how many times more abundant than cold receptors

27 time

93 - Cold receptors are how many times abundant than heat receptors

10times

94 - Touch receptors are more abundant in which organ

finger tips

95 - Stimulus detected by receptors pass into

sensory neurons

96 - Digestive juice secretion of pancreas is associated with

exocrine tissue of pancreas

97 - Islets of langerhan are functionally divided into how many types of cells

both a and b

98 - Insulin is secreted by which type of cells of pancreas

beta cells

99 - Right after a meal when blood sugar level rises which hormone is secreted by pancreas at that time

insulin

100 - Conversion of glucose to glycoge is known an

glycogenesis

101 - under secretion of insulin leads to

All

102 - High blood glucose level in urine is termed as

glycosuria

103 - Which hormone is responsible for the increase in level of blood glucose

glucagon

104 - Adrenal medulla produce which hormones

both a and b

105 - Which adrenal hormones are released during emergency under the influence of sympathetic nervous system

both a and b

106 - Secretion of calcitonin from thyroid is stimulated by

calcium ions

107 - Classic symptom of hyperthyroidism is

All

108 - When bones are growing drmatically in maa,size and shape during child hood which hormone is necessary at that time

calcitonin

109 - T3 is how many times more potent than T4(thyroxine)

4times

110 - In humans there are how many parathyroid glands

4

111 - Which hormone essentially acts on the cells of intestine to promote calcium from diet

Calcitonin

112 - Which hormones act antagonistic to each others function

calcitonin and parathormone

113 - How many hormones are secerted by parathyroid glands

two

114 - Under secretion of parathormone cause

both a and c

115 - Islets of Langerhans are actually

patches of endocrine tissue

116 - Which type of hormones donot have receptors on plasma membrane

steroid hormones

117 - Which type of hormone are water soluble and have receptors on plasma membrane

protein hormone

118 - Receptors for the steroid hormones are present in

both a and b

119 - Which hormone modifies torget cell activities by altered gene expression

both a and c

120 - Humans have how many ductless glands

20

121 - Which one of the following can be called as master control center of the endocrine system

hypothalamus

122 - Pituitary gland is under control of

hypothalamus

123 - Special type of cells in hypothalamus which perform secretory acticity are

neurosecretory cells

124 - Hormones produced by hypothalamus are transported to axons in the form of

granules

125 - Sceretions of hypothalamus which regulate synthesis of pituitary hormone are known as

releasing factors

126 - In living things activities which occur at regular intervals are called

both a and b

127 - Bio rhythms showing periodicity of 24 hours known as

both b and c

128 - 365 days rhythmicity of activities in plants is called

circanual

129 - Rhythms in plants are usually controlled by

both a and b

130 - Innate nature of 24 hour rhythms proved by Ervin Burning was in which

Drosophila

131 - Chemically indole acetic acid or its variant is

Auxin

132 - Which of teh following are the function of Auxin

All

133 - Bud initiation in plants is controlled by which hormone

both b and c

134 - Which hormone is responsible for delay in leaf aging in some species

All

135 - Which substance is slective weed killer

2,4dicholoro phenoxy acetic acid

136 - Largest part of brain is

cerebrum

137 - The limbic system is present in an arc between

thalamus and cerebrum

138 - Hunger,thusrt and sexual arousal are controlled by which part of brain

limbic system

139 - Formation of memory is related to which part of brain

hippocampus

140 - Sleep wake cycle,homeostasis,hunger all these are controlled by

hypothalamus

141 - Which one is the part of limbic system

All

142 - Act of punishment and reward is related to which brain part

amygdala

143 - Which part is essential in learning process and long term memory

hippocampus

144 - Cerebral hemispheres are connecy by

both a and b

145 - The outer convoluted and folded area or creberum is called

cerebral coretx

146 - _Ova is/are produced to ensure continuity of species.

Huge number

147 - Important parasitic adoptation of platyhelminthes is:

Both b and c

148 - Which class has the largest number of animals?

Mammals

149 - Periplaneta belongs to which phylum?

Arthropoda

150 - In Taenia development of zygote begins while it is still _.

Inside the uterus of female

151 - Embryo inside the egg is round shaped having_chitinous hooks.

Six

152 - Taenia remain in _of cow.

Voluntary muscles

153 - If uncooked food is eaten this parasote may start further development in _of man.

Intestine

154 - Besides treatment with drugs _are given to remove parasite completely.

Anema

155 - Water enters through sieve like plates called:

Madreporite

156 - There are no special organs for _in echinodermata.

Both a and c

157 - There are specialized organs for _and reproduction.

Digestion

158 - Which one is absend in echinodermata.

Brain

159 - Larvae of echinodermata is called:

Bipinnaria

160 - _is abality to reform lost organs.

Regeneration

161 - Echinodermata are placed _of invertebrate phyla.

Top

162 - There is _cleavage during development of embryo in echinodermata.

Radial

163 - _can grow from a small fragment such as one arm.

Sea stars

164 - Pedicellaria are modified:

spines

165 - In oligochaeta _region is not prominent.

Head

166 - _larvae is formed during development of oligochaeta.

No larvae is formed

167 - Oligochaeta are:

Aquatic or terrestrial

168 - Example off oligochata is:

Lumbricus terrestris

169 - Class _have fixed number of segments.

Hirudinea

170 - Each segment in hirudinea have additional rings called:

Annuli

171 - Which class do not have any organ of locomotion:

Hirudinea

172 - Leech move by:

Contraction of body

173 - Leech have _to make puncture in the skin of host.

Chitinous jaws

174 - Word arthron means:

Articulation or joint

175 - Hydra prevent self fertilization by being:

Protandrous

176 - There is nerve ring around_in nematoda.

Pharynx

177 - Excretory system of nematoda consist of:

Two longitudinally running excretory canals

178 - Nematoda contains sense organs in the form of:

Sensory papillae

179 - Nematoda lack:

Both a and b

180 - Locomotion of nematoda is due to:

Both b and c

181 - Locomottary muscles are arranged in_bands.

Four

182 - Four bands are:

Two dorso- lateral and two ventro-lateral

183 - _Muscles in nematoda are absent:

Circular

184 - Ascaris lumbricoides is _parasite.

Intestinal

185 - Example of radiata is:

Cnidaria

186 - Sea anemone have:

Cylindrical body

187 - In bilateral symmetry :

Right side is same as left side

188 - In bilateral symmetry body is divided in:

One plane

189 - Echinodermata has:

Both Radial and bilateral

190 - Bilateria are:

Triploblastic

191 - In proterostomia zygote is:

Spiral and determinate

192 - In proterostomes mouth develop from:

Blastopore

193 - Deuterostomes have_zygote.

Radial and indeterminate

194 - In deutrostomes mouth is formed from:

At some distance from blastopore

195 - Mammals are :

Warm blooded

196 - Red blood cells are:

Non-nucleated

197 - Mammals are classified into_ subclasses.

3

198 - Example of thaliacea is:

Salpa

199 - Egg laying mammals are called:

Prototheria

200 - Pouched mammals are called:

Metatheria

201 - Unique structures that are found only in birds.

Feathers

202 - _Birds that use Troper are very small?

Humming birds

203 - In birds only a small percentage of nephron_contain a loop of Henly:

15_25 percent

204 - Which one is not related to class Crustacea:

Wasps

205 - _is largest group of arthropods.

Class insecta

206 - Insects have distinct_regions.

Three

207 - Thorax has_segments.

Three

208 - Abdomen have_segments.

Varing number

209 - Animas of class insecta are:

Oviparous

210 - Which one is not example of class insecta:

Prawn

211 - Pair of appandages in arachnida are called:

Chelicerae

212 - Crustacea have_mandibles.

One

213 - Arachnida have _pairs of legs.

Four

214 - Electric ray have electric organs in_.

Dorsal muscles

215 - Oil is extracted from:

Sharks

216 - Liver oil is used as source of:

Vitamin A and D

217 - Gills in Osteichthyes is covered by:

Operculum

218 - Swim bladder of Osteichthyes is :

Not connected to pharynx

219 - Osteichthyes are:

Bony fishes

220 - Heart of Osteichthyes is:

Two chambered

221 - Blood colour of Osteichthyes is:

Red

222 - Brain of Osteichthyes contains _cranial nerves.

10 pairs

223 - _provides resistant to water.

Stream lined body

224 - Difference between starfishes and a brittle star is:

Structure of tube feet

225 - The projections between spines and plates are called:

papulae

226 - Echinoderms has classes:

5

227 - Scientist believed that echinoderms evolved from_ancestors.

Bilaterally symmetrical

228 - largest known sea star weighted is:

11 pounds

229 - Female sea star can lay eggs at a time:

100 million

230 - Sea Cucumber has _arms.

No

231 - Along the length of the arms are branches called:

Pinnules

232 - Starfish eats_.

Bivalves

233 - Pelecypoda is also called:

Bivalvia

234 - Bivalvia respire through:

Plate like gills

235 - Which one is not example of bivalvia:

Octopus

236 - Mytilus is:

Marine mussel

237 - Anodonta is:

Freshwater mussel

238 - _species of cephalopods are aquatic.

All

239 - Shell in cephalopodes is:

All of these

240 - Which one in not example of cephalopodes:

Squid

241 - Liligo is a:

Squid

242 - Sepia is a:

Cuttle fish

243 - Largest eyes are found in:

Deer

244 - Herbivores generally have _.

Long digestive tract

245 - Odd toed ungulates such as horse, zebra, donkey etc. are included under order:

Perissodactyla

246 - Bats are included under order:

Chiroptera

247 - Omvthorhynchus is a:

Monotreme mammal

248 - In ribbit, the danger signal is given by:

Tail

249 - The exoskeleton of rabbit consists of:

Hairs and claws

250 - In which order human is placed?

Primates

251 - The names Prototheria means:

First beasts

252 - Word Metatheria means:

Changed beasts

253 - Body of arthropods is:

Segmented

254 - Each segment of arthropod is joint to other segement with the help of:

Cuticle

255 - Arthropods are believed to have common origin with:

Annelids

256 - Which one is not common character of arthropods and annelids:

Suckers

257 - Athropods contain:

Haemocoel

258 - Haemocoel is:

Reduced coelom

259 - Cuticle is secreted by:

Epidermis

260 - Excretory system of arthropods contain:

Malpighian tubules

261 - Nitrogenous wastes in arthropods are secreted in the form of:

Uric acid

262 - A_is present in each segment.

Ganglia

263 - Ostrich lacks:

keeled sternum

264 - Birds depend on their _to preen their feather.

Beaks

265 - Mouth of reptiles opens into:

Buccal cavity

266 - Haemoglobin bearing cells are ?

Erythrocytes

267 - _helps food to move into stomach of Reptiles.

Oesophagus

268 - Example of class larvacea is:

Oikopleura

269 - Term mammal was given by_.

Linnaeus

270 - Mammals are involved from reptiles ancestor _.

Cotylosaurs

271 - Example of ascidiacea is:

Ascidia

272 - The respiratory organ in reptiles is:

Lungs

273 - Which of the following is a living fossil?

Tuatara

274 - Bones of the reptiles are covered by:

Keratin

275 - Animals that get most affected by the change in the environmental temperature are:

Poikotherms

276 - Most reptiles are:

Uricotelic

277 - Uricotelism is found in:

Birds, land reptiles and insects

278 - Body temperature of Lizard when lie on rock is ?

37â„Æ’

279 - _have salt excreting glands in their palate ?

Sea snakes

280 - Eustachian tube absent in which of the following ?

Snakes

281 - _asexual reproduction present in lizards.

Parthenogenesis

282 - _is called Portuguese man of war :

Physalia

283 - Obelia has zooids known as:

Blastostyle

284 - Life cycle of coelenterates is characterized by :

Alternation of generation

285 - Two generations consist of:

One free living and one is attached

286 - Two generations are:

Diploid

287 - Occurrence of structurally and funtionally more than two different types of individuals is called:

Polymorphism

288 - Whch one is not example of Cnidaria:

Taenia

289 - Hydra is_coelenterate.

Fresh water

290 - In which of following alternation of generation is absent?

Hydra

291 - Hydra lacks:

Medusa form

292 - _are boarder line between aquatic and terrestrial animals.

Amphibians

293 - Skeleton of amphibians is:

Mostly bony

294 - Example of legless amphibians is:

Cacecilians

295 - Respiration takes place by gills at:

Larval stage

296 - Respiration takes place through lungs at:

Adult stage

297 - Heart of amphibians is:

Three chambered

298 - Amphibians are called:

Anamniotes

299 - Amphibians are _animals.

Cold bloooded

300 - Exampleof amphibians is:

All of these

301 - Number of species in chordata are:

45000

302 - Number of classes of Urochordata are are:

3

303 - Heart of tunicates is present at base of:

Pharynx

304 - Blood plasma of tunicates is:

Colourless

305 - Gills in fishes are supported by:

Gill arches

306 - Cephalochordates lack:

True heart

307 - _______number of species are included in cephalochordates:

45

308 - Cephalochordates include_genera.

2

309 - There are_classes of verterbrates:

Seven

310 - Earliest known bird fossil is :

Archaeopteryx

311 - Birds are _animals.

Warm blooded

312 - _are modified into wings.

Fore limbs

313 - Circulatory system of birds have_heart.

Four chambered

314 - Organ of voice in birds is called:

Syrinx

315 - Birds have thick muscular structure called_for crushing food.

Gizzard

316 - Birds have secondariy lost power of flight are called_.

Running birds

317 - Example of running birds is:

Both a and c

318 - The upper jaw of all birds is ?

Immoveable

319 - Beak in birds is supported by ?

Maxilla

320 - Trochophore larva develops into another free living larva with foot called:

Veliger larva

321 - Term echinoderms mean:

Spiny skin

322 - There are exclusively_animals.

Marine

323 - _is a locomotory organ in Echinoderms.

Tube feet

324 - Echinoderms are from in period?

Cambrian period

325 - There are about_known species of echinoderms.

5000

326 - _may bear spines in echinoderms.

Endoskeleton

327 - Body of cake urchin is:

Biscuit shaped

328 - Arms radiate from:

Central disc

329 - Most unique character of echinodermata is:

Water vascular system

330 - Sponges are used in:

All of these

331 - Best commercial sponges are found in:

Mediterranean sea

332 - Sponges have capacity to absorb:

Both a and c

333 - Cnidaria are also called:

Coelenterata

334 - Cnidocytes give rise to:

Nematocysts

335 - Nematocysts means:

Stinging cells

336 - Ectoderm give rise to:

Nematocysts

337 - Cnidaria have cavity called:

Enteron

338 - Digestive system in cnidaria is:

Sac like

339 - Proglottides of Tapeworm proliferate from:

Neck

340 - Disease caused by Fasciola is:

Liver rot

341 - The number of proglottides in Taenia solium is:

900

342 - Digestive system of hemichordates is:

Both a and b

343 - Excreotory system of hemichordates consist of:

Single glomerulus

344 - Common characteristic of chordata is:

Notochord

345 - Notochord is semi regid body of:

Vacuolated cells

346 - Vaculated cells are filled with:

Proteinaceous material

347 - In higher vertebrates notochord is repalced by:

Vertebral column

348 - Chordates can inhabit in _habit.

All

349 - Basic parts of mollusc are:

4

350 - Molluscs are soft bodied animals that have either:

Both internally and externally

351 - The word Molluscus Means:

Soft

352 - Special Gills in molluscs which are also used for filter-feeding are called:

Ctenidia

353 - In Molluscs blood travels in open spaces called:

Sinuses

354 - Gastropoda are :

Asymmetrical

355 - Which one is example of gastropoda.

Both a and b

356 - Common name of Helix aspersa is:

Gardon snail

357 - Limax is a:

Slug

358 - Length of giant squid is :

15 meters

359 - Stages between molts of the exoskeleton are called :

Instar

360 - The immature form (between egg and pupa) of insects with complete metamorphosis is :

Larva

361 - Pupa is:

Motionless

362 - Class crustacacea are:

Aquatic

363 - Class crustacacea respire through:

Gills

364 - Exoskeleton of crustacea is in the form of:

Carapace

365 - _are modified for walking ,capturing food and swimming.

Appendages

366 - Coelom in crustacea is in the form of:

Hemocoel

367 - Class crustacea has_antennal appandages.

Two

368 - Sexes of class crustacea are _.

Mostly separate

369 - Plytyhelminthes means:

Flatworms

370 - Body of flatworms is:

Soft and dorsoventrally compressed

371 - In flatworms _separate endoderm from ectoderm.

Mesoderm

372 - Plytyhelminthes exibit bilateral symmetry and body is_.

Unsegmented

373 - Most of Plytyhelminthes are:

Parasites

374 - Taenia solium is:

Endoparasite

375 - Common name of Taenia solium is:

Tapeworm

376 - Common name of Fasciola hepatica is:

Liver fluke

377 - Planaria is :

Fresh water living

378 - Gugesia is name of:

Planaria

379 - Word Eutheria means:

True beasts

380 - Cephalochordata contain _species.

23

381 - Cephalochordata contain _genera.

2

382 - Which body parts birds do not have ?

Teeth

383 - Which bird flies longest distance in its lifetime ?

Arctic tern

384 - Which is the smallest bird in the world ?

Bee humming bird

385 - How many different types of feathers are there in birds?

4

386 - Which feathers were used as pens?

Wing feathers

387 - Which is the fastest swimming bird ?

Penguin

388 - The size and shape of a bird̢۪s wings depend on the type of:

Flying it does

389 - In_cleavage fate of each blastopore is foretold:

Spiral and determinate

390 - In protostomes mesoderm is derived from:

Inner lip of blastopore

391 - In radial cleavage planes of cleavage are _to polar axis.

Symmetrical

392 - Radial cleavage produces tires of cells:

On top of each other

393 - In radial cleavage:

Fate of each is not foretold

394 - In deutrostomes mesoderm is derived from:

Walls of developing gut

395 - In which cleavage any cell can produce a complete embryo ?

Radial and indeterminate

396 - Diplobaastic animals consist of_layers.

2

397 - Diplobaastic animals consist of:

Endoderm and ectoderm

398 - Between endoderm and ectoderm there is jelly like layer called:

Mesogloea

399 - Pseudocoloem lacks:

Coelomic epithelum

400 - Pseudocoloem is bounded externally by:

Muscles

401 - Internally pseudocoelom is bounded by:

Cuticle of intestine

402 - Coelom is cavity between body wall and_.

Alimentary canal

403 - In coelomates _system is well developed:

All of these

404 - Visceral and parietal layers are related to:

Mesoderm

405 - Primitive animals are:

Porifera

406 - Word Porifera is derived from_language.

Latin

407 - Word porifera means:

Pore bearing

408 - Porifera are also called:

Sponges

409 - Entrerobius vermicularis is commonly known as:

Pin worm

410 - Pinworm is parasite of:

All of these

411 - Which one is related to pin worm:

All of these

412 - Ancylostoma duodenale is commonly known as:

Hook worm

413 - Hook worm is parasite of:

Small intestine

414 - During feeding hook worms produces_to prevent clotting of blood.

Anticoagulant

415 - Which one causes anemia and retard mental growth in children.

Hook worm

416 - A single rotting apple may contain_worms.

90000

417 - Sperm of nematoda is:

Amoeboid

418 - Annelids are called :

Segmented worms

419 - Chitin is made up of:

Polysaccharides

420 - Chitin in jaws is used:

For crushing food

421 - The process of sheding of exoskeleton is called:

Ecdysis

422 - Which hormone cause moulting in insect?

Ecdysone

423 - The study of insect is called ?

Insectology

424 - Arthropod exoskeleton is?

Hardened and inflexible

425 - Arthropod exoskeleton is made of:

Chitin and protein

426 - Crustacea have cuticle hardened by:

Calcium salts

427 - The dorsal lobe of the brain of arthropod receive sensory axon from:

Eyes

428 - The ____ in arthropod is lined with permeable cuticle:

Midgut

429 - Arrthropods exibit:

Metamorphosis

430 - Meta means:

Change

431 - Morhp means:

Form

432 - Complete metamorphosis consists of _ stages.

Four

433 - Incomplete metamorphosis consists of _stages.

Three

434 - _consists of a very active, ravenously eating larva and an inactive pupa.

Complete metamorphosis

435 - Grub, like juvenile insects are called:

Larvae

436 - After the last larval instar, the insect changes into:

Pupa

437 - In _ stage, the insect does not feed or move around much.

Pupa

438 - The immature form of insects with simple metamorphosis is :

Nymph

439 - Ampulla contract and force fluid into_.

Podia

440 - Podia contract by forcing water back into:

Ampulla

441 - When the podia contracts, the body is pulled:

Forward

442 - Common characters of echnodermata and hemichordata are:

All of these

443 - Which one example of echinodermata.

All of these

444 - Water vascular system is called:

Ambulacral system

445 - Hemichortada are combination of:

chordata and echinodermata

446 - Hemichortada are also called:

Pre chordata

447 - Common example of phylum Hemichordata are:

Both a and b

448 - Body of hemichordates have_parts.

3

449 - _have the first true excretory system.

Flatworm

450 - Proglottids in each animal of Platyhelminthes contain:

3000-4000

451 - Fluke body shape resemble with:

Leech

452 - Adult fluke is present in:

Liver

453 - Animals with self fertilization is:

Taenia solium

454 - Pharynx can be everted in?

Dugesia

455 - In Dugesia respiration is:

Aerobic

456 - Segments of Tapeworm are called:

Proglottides

457 - Tapeworm respires:

Anaerobically

458 - Incomplete alimentary canal is present in:

Fasciola

459 - Excretory system consist of branching tubes ending in bulb like cells called:

Flame cells

460 - Sense organs in flateworms are in:

Anterior end

461 - In platyhehminthes _system is absend.

Both respiratory and circulatory

462 - Free living platyhehminthes move with the help of:

Cillia

463 - Asexual reproduction in platyhehminthes is by:

Fission

464 - platyhehminthes are:

Hermaphrodite

465 - _form is sometimes absent in platyhehminthes.

Larval

466 - Fasciola is endoparasite of:

Sheep

467 - Fasciola has _for attachment to host tissues.

Suckers

468 - Fasciola completes its life cycle in:

Two hosts

469 - Coelenterates are :

only Aquatic

470 - _may reach upto two meters.

Polyp

471 - There are_basic forms of cnidaria.

2

472 - Two basic forms of cnidaria are:

Polyps and medusa

473 - Polyps are named as:

Gastrozoids

474 - Medusa is_.

Umberella like

475 - Medusa are:

Free swimming

476 - _is involved in sexual reproduction.

Medusa

477 - Polyps are_animals:

Cylindrical

478 - Medusa contains:

Gonads

479 - The word animalia is derived from:

Latin

480 - Word "Animalia " means:

Breath or soul

481 - According to two kingdom classification system multicellular animals were called:

Metazoa

482 - In traditional systems single celled animals were called:

Parazoa

483 - Five kingdom classification system was given by:

Robert Whittaker

484 - According to five kingdom classification system protozoa belong to:

Protoctista

485 - Which one is most impressively present in animals:

All of these

486 - Simplest organisms belong to:

Parazoa

487 - _is phylum of protozoa:

Porifera

488 - Body of parazoa is:

Both a and c

489 - Mouth is surrounded by:

Tentacles

490 - Coelentrates are:

Carnivores

491 - Nervous system in Cnidaria is in the form of:

Plexus

492 - Corals contain:

Calcium carbonate

493 - CaCO3 is secreted by:

Epiderma cells

494 - Which of following cnidaria are seesile?

All of these

495 - _is an aggregation of individuals that perform different functions.

Colony

496 - Some colonial members may have upto_different types of zooids.

5

497 - Example of colony member having upto 5 zooids is:

Physalia

498 - Porifera are:

Macroscopic

499 - Single cavity inside the body of sponges is called:

Spongocoel

500 - Scolymastra joubini is _meter tall.

1

501 - Scolymastra joubini is:

Barrel like glass sponge

502 - The pores through which water enters are called:

Ostia

503 - Pores through which water leaves are called:

Osclum

504 - In sponges there is no-organs.

Both b and c

505 - Spongs are:

Sessile

506 - Sponges trap food by movement of:

Flagella of chaonocytes

507 - Porifera includes:

Both a and b

508 - Larva of hemichordata is called:

Tornaria

509 - Size of hemichordata is about:

10-40cm

510 - Acorn worms are included in:

Hemichordata

511 - Hemichordates have _bodies:

soft worm like

512 - Classes of hemichordates are:

3

513 - Flexible rod of cartilage present gut and dorsal nerve cord is:

Notocord

514 - Phylum Platyhelminthes consists of classes:

4

515 - Free-living Platyhelminthes have a well developed:

Both a and c

516 - In deutrostomes anus is formed from:

Blastopore

517 - In proterostomes coelom is formed by:

Mesoderm

518 - Animals containing coelomic cavity are called:

Schizocoelous

519 - Chordata and hemichordata belong to:

Deutrostomes

520 - Cleavage in which lines or planes of cleavage are not symmetrical between polar axis is called:

Spiral and determinate

521 - In spiral cleavage:

Lines are diagonal to polar axis

522 - Annilida, mullusca and arthropoda belong to:

Prtostotomes

523 - In deutrostomes coelom is developed as:

Outpouching

524 - Spiral cleavage produces:

Unequal cells

525 - In spiral cleavage blastopore has determined role in:

Formation of embryo

526 - Arachnida are without:

Antenna and true jaws

527 - Respiration in arachnida is through:

Book lungs

528 - Excretion in arachnids is through:

Malpigian tubules

529 - Eyes of arachinds are:

Simple

530 - Arachnids are:

Oviparous

531 - Which one is not example of class arachnida:

Wood louse

532 - Spiders have _eyes.

Eight

533 - Class myriapoda includes:

Both a and b

534 - Main achievement of arthropodes is:

Both a and b

535 - Which one is not true about chitin:

It is cellular

536 - Hag fishes are:

Hermophrodite

537 - Fertilization of fisces is:

External

538 - Body of chondrichthyes is:

Fusiform

539 - _Scales are present on the body of chondrichthyes is:

Placoid

540 - digestive system of chondrichthyes is:

J shaped

541 - _pairs of gills are present in chondrichthyes:

5 to 7 pairs

542 - chondrichthyes are:

Oviparous or vivoparous

543 - Some species of chondrichthyes reaches upto:

30-50 feet

544 - Bottom dwelling fishes are:

Both a and b

545 - In stig fishes tail is:

All of these

546 - Muscular , skeletal and reproductive system are developed:

Mesoderm

547 - Endoderm forms:

Both a and b

548 - Digestive system in triploblastic animals is:

Tube like

549 - Triploblastic animala are further divided into_catagories:

3

550 - Platyhelminthes are :

Acoelomates

551 - In acoelomates _fills cavity between endo and ectoderm.

Parenchyme

552 - Function of parenchyme is:

All of these

553 - Only_system is developed in acoelomates.

Excretory

554 - In acelomates Excretory system consist of:

All of these

555 - In acelomates space between_abd_is called pseudoceloem.

Body wall and digestive tube

556 - Which one is related to amphibians:

Both a and b

557 - Persistence of larval traits is called:

Pedomorphosis

558 - Dicondylic skull along with ten pairs of cranial nerves is found in:

Amphibia

559 - A frog has:

All of these

560 - In reptiles _of heart is incompletely partitioned .

Ventricle

561 - Partition ensures _through blood circulation.

More oxygen supply

562 - In_Ventricle is compeletely partitioned into two.

Crocodiles

563 - Reptiles flourished throughout _era.

Mesozoic

564 - Reptiles of today have been derived from dinosaurs of_.

Jurrasic and cretaceous

565 - Correctly matched pair is:

Chondrichthyes- cartilaginous endoskeleton

566 - Sensory organs are usually a pair of :

Both a and b

567 - Most arthropods contain_for exchange of gases.

Extensive tracheal system

568 - Main tube of tracheal system open to exterior through paired openings called:

Spiracles

569 - Aquatic arthropods respire through gills called:

Book lungs

570 - Circulatory system of arthropodes is:

Open

571 - Blood of arhropodes is:

Colourless

572 - Blood is colourless due to:

Lack of haemoglobin

573 - Exoskeleton provide surface area for:

Both a and c

574 - Arthropods can :

All of these

575 - Organ of locomotion are:

Both a and b

576 - Eutheria mammals are also called:

Placental mammals

577 - _maximum mammalian characteristics.

Placental mammals

578 - In_some hairs are modified into scale.

Both a and b

579 - Which is the largest living bird on Earth?

Ostrich

580 - There are over _living annelid species.

22000

581 - Subphylum Cephalochordata has species:

30

582 - Subphylum Cephalochordata has classes:

Two

583 - Subphylum Tunicata contains _species.

3000

584 - Subphylum Tunicata contains _classes.

4

585 - Example of class Appendicularia is:

larvaceans

586 - Aschelminthes are called:

Nematoda

587 - Nematoda means:

Pointed worms

588 - Body of nematoda is:

Unsegmented

589 - Pseudocoelom is filled with:

Protein rich fluid

590 - _were first to branch off the evolutionary tree from the last common ancestor of all animals.

Sponges

591 - Gemmules are also called:

survival pods

592 - A sponge can be distingushed by other animals due to presence of:

Choanocytes

593 - Larvae od sponges is called:

Amphiblastula larva

594 - Common bath sponge is:

Euplectella

595 - Digestion in sponges is:

Intracelluar

596 - Sponges are:

Hermophrodite

597 - Most sponges are :

Protandrous

598 - Sperms released in water are carried to eggs by_.

Amoeboid cells

599 - Fertilization of sponges occur in:

Mesenchyme

600 - Embryo development includes:

Both blastula and larval stages

601 - Which one is not related to porifera:

Hydra

602 - Typical marine ponge is:

Sycon

603 - A sponge that consist of erect tubes is:

Leucoselena

604 - Venus flower basket is common name of:

Euplectella

605 - _is fresh water sponge.

Spongilla

606 - Annelid means:

Little ring

607 - Annelids include organisms which are:

All of these

608 - Mouth of annelids is overhung by a loobed structure called:

Prostomium

609 - Excretory system of annelids consist of:

Nephridia

610 - Nervous syatem of annelids contain:

Simple brain

611 - Annelids are 1st group of invertibrates which have developed:

Circulatory system

612 - _system is absent in annelids.

Respiratory

613 - Locomotion in annelids is due to _types of muscles

2

614 - Circular muscles are arranged along _of body.

Circumference

615 - Longitudinal muscles are arranged along _of body.

Length

616 - 2nd host of fasciola is:

Snail,sheep or man

617 - Fasciola lives in:

Bile duct

618 - 1st host of fasciola is:

Sheep and occationally man

619 - Taenia is endoparasite of:

All of these

620 - Intermidiate hoste of tape worms is:

Pig or cattle

621 - Body of tapeworms is:

Ribbon like

622 - Body of tapeworms is divided into segments called:

Proglottids

623 - Proglottids manly contain:

Sex organs

624 - In platyhehminthes _layer is absent:

Epidermis

625 - There is degeneration of_in platyhelminthes.

Muscular and nervous system

626 - Subphylum Vertebrata contains_classes:

Five

627 - Example of class Thaliacea is:

All of these

628 - Characteristics of class myxini are:

Both a and b

629 - _ develops from the trochophore larva and has large, ciliated lobes .

Veliger larva

630 - Example of class Ascidiacea is:

sea squirts

631 - Primary function of notocord is:

To support body

632 - _is chief basic factor in development:

Endoskeleton

633 - All chordates develop paired gills in _stage.

Embryonic stage

634 - Paired gills are functional through out the life in:

Both a and c

635 - Gills paired is functional for shorter period of time in:

Frogs

636 - Vertebrates are called:

Craniates

637 - Lower chordates are also called:

Protochordates

638 - Chordata have _classes.

5

639 - In urochordates adults are sessile and inclosed in covering called:

Tunic

640 - Example of tunicates is:

Molgula

641 - Subphylum vertebrata is also called:

Craniata

642 - Higher chordates are:

Sub phylum vertebrata

643 - Vertebrata have _super classes.

2

644 - Pisces include _classes.

Three

645 - Tetrapoda includes _classes.

4

646 - Body of Pisces is:

Eel like

647 - Heart of pisces contains_auricles.

One

648 - Number of gills in pisces is:

6 to 14 pairs of gills

649 - Digestive system of pisces lack:

Stomach

650 - Contration of birds pectoral muscles pull the wings:

DownwardÂ

651 - Yolk is a _rich food store .

Fat

652 - Longitudinal migration occurs mostly in birds of :

Europe

653 - _are one of the deadliest species of venomous snakes.

King cobras

654 - Cephalochordata are:

dioecious  Â

655 - Placental mammals are called:

Eutheria

656 - Prototheria has characteristics of:

Both reptiles and mammals

657 - Counter current multiplier is the property of ?

Mammals

658 - _have green yellow blood.

Crotaline snakes

659 - In mammals the shortest gestation period of _ occurs in American opossum ?

121/2 days

660 - In ____ there is no separate digestive gland.

Insects

661 - In arthropod the need to moult during growth provide an opportunity for:

Metamorphosis

662 - Mosquito tansmits_that cause malaria.

Plasmodium

663 - Tse-tse fly transmits_.

Trypanosoma

664 - Tse-tse fly causes:

Both a and b

665 - _causes cholera.

Common house fly

666 - Some species of trypanosoma also causes disease in:

Cattles

667 - Scavengers eat up:

Both b and c

668 - Cephalopoda is _mollusca.

Highly active

669 - _of food is obtained from detrial organic particles.

0.8

670 - Adult sponges are :

Stationary

671 - Larvae of porifera is:

Able to move

672 - Skeleton of sponges needle like structure called:

Spicules

673 - Spicules may be :

Calcareous or siliceous

674 - Skeleton among_provide support.

Pinacocytes

675 - Spicules are present arround:

Osculum and ostia

676 - Sponges reproduce by method:

Both sexual and asexual

677 - Asexual reproduction in sponges is:

Budding

678 - Internal bud is called:

Gemmules

679 - All animals other than parazoa are included in:

Eumetazoa

680 - Eumatazoa are animals which:

Contain organized organs and tissues

681 - Eumatazoa _symmetrical animals.

Radial and bilateral

682 - About_phyla of animalia belong to eumatazoa.

29

683 - On th basis of body cavity animals are divided into_groups.

3

684 - Animals with out body cavity are called:

Acoelomates

685 - Animals with body cavity are called:

Coelomates

686 - Animals with false coelom are called:

Pseudocoelomates

687 - Animals with radial symmetry are:

Diploblastic

688 - In radial symmetry Two halfs are :

Mirror image of each other

689 - Chordates are divided into _Â subphyla.

Three

690 - About half of species are bony fish that are members of the_.

Pisces

691 - Study of sharks and rays is called:

Torpedology

692 - The oldest living fish is:

Coelocanth

693 - ________does not have lateral line organs.Â

Whale

694 - The Superclass Pisces are_.

Truly jawed vertebrates

695 - Group of fish called_show modification of aquatic breathing.

Dipnoi

696 - When fish is not swimming the swim bladder is filled with:

Air

697 - Phylum mollusca includes about_species.

50000

698 - Second largest phylum of invertebrates is:

Mollusca

699 - _is largest invertebrate animal.

Giant aquid

700 - Body of mollusa is covered by envelope called:

Mantle

701 - Mantle secrete_.

Calcareous shell

702 - Body of mollusa is :

All of these

703 - Mantle is present over the_.

Visceral mass

704 - Space between _contains gills in some animals.

Shell and mantle

705 - Rasping tongue is called:

Radulla

706 - Extretory system of mollusca contains:

Paired nephridia

707 - Organ of locomotin in earthworms is:

Setae

708 - Chaetae are absent in:

Leech

709 - Nereis produces larvae called:

Trochophore

710 - Which of following have burrowing activity:

Earth worms

711 - Most active segmented worm is:

Earthworms

712 - Annelids contains_classes.

3

713 - Which one is not true about class polychaeta:

Don't contan organ of locomotion

714 - Organ of locomotin in polychaeta is:

Parapodia

715 - Example of polychaeta is:

Both a and b

716 - Class oligochaeta have_segmentation.

Both internal and external

717 - The wings of the _birds are pointed backward.

Both egrets and herons

718 - Which one can see at night:

Owl

719 - What types of beaks a parrot has?

Curved beaks

720 - Common characteristic of kangaroo, parrot and platypus is:

Homeothermy

721 - Which bird has the longest eyesight ?

Eagle

722 - Which of the following bones form the wishbone of birds?

Clavicles

723 - Which one is related to duck dill:

All of these

724 - Which bird makes the loudest sound ?

White bellbird

725 - Abdominal pouch is called:

Marsupium

726 - Example of pouched mammals is:

All of these

727 - Obelia is_coelenterate.

Marine colonial

728 - Common name of Aurelia is:

Jelly fish

729 - In Aurelia _reduced and _is dominant.

Polyp , medusa

730 - Common name of Actinia is:

Sea anemone

731 - Actinia consist of:

Only polyp

732 - Body of which coelenterate is covered by calcium carbonate.

Madrepora

733 - ________are commonly called corals.

Madrepora

734 - Corals are formed by the secretions produced by specialized :

Both A and B

735 - Living plyps are found _of corals.

Surface layer

736 - Porifera are :

All are aquatic

737 - Total species of sponges are:

5000

738 - About _species are fresh water living.

150

739 - In sponges outer wall is called:

Pinacoderm

740 - Pinacoderm is made up of:

Pinacocytes

741 - Inner layer of sponges is called:

Choanoderm

742 - Choanoderm is made up of:

Collar cells

743 - Between two layers of sponges _is present.

Mesenchyme

744 - Mesenchyme contains:

All of these

745 - Poriferans range from few milimeters to_long.

1 meter

746 - Circulatory system of mollusca is:

Open

747 - Respiratory pigment is:

Haemocyanin

748 - Colour of haemocyanin is:

Blue

749 - Gaseous exchange is mostly through:

Gills

750 - In some cases _is converted into lungs.

Mantle

751 - Organ of locomotion in mollusca is:

Muscular foot

752 - Larvae of mollusca is called:

Trochophore

753 - Most molluscs are of?

Marine Habitats

754 - Which one is the â€Å“Pearl Mother Layer”?

Nacre

755 - The word molluscus comes from:

Latin

756 - In vitro fertilization in case of treatment of infertility in humans is

All

757 - In vitro fertilized eggs are called

pre embryo

758 - During test tube baby technique pre embryo which is entered into uterus is at how many cell stage

2 to 8 cell stage

759 - Treatment with which hormone is necessary to continue to promote favourable uterine environment for implantation in case of invitro fertilization

progesterone

760 - Abortion is

induced termination of embryo

761 - Miscarriage is

All

762 - If a baby is born before expected date of delivery this in known as

pre mature birth

763 - Which of the following can be cause of miscarriage

All

764 - Speciality of medicine which is concerned with dysfunction and disease of female reproductive system is

Gynecology

765 - Speciality in medical field dealing with study of pregnancy and birth is called

Obstetrics

766 - The sequence of all reproductive events in female reproductive system is known as

both a and b

767 - Menstrual cycle is further divided into

both a and b

768 - Those events which occur in ovaries are known as

ovarian cycle

769 - Those events which occur in uterus during menstrual cycle are known as

uterine cycle

770 - Events of ovarian cycle and uterine cycle are coordinated by pituitary hormone

gonadotropins

771 - Based upon changes and hormonal regulations female reproductive cycle is divided into

all

772 - In human female the periodic reproductive cycle is completed in how many days

28 days

773 - Development of primary follicles is stimulated by which hormone

Follicle stimulating hormone

774 - Degenerative process which causes breakdown of follicles is called

Follicle atresia

775 - Internal lining of uterus wall and vascularization of it takes place in the influence of which hormone

estrogen

776 - Increase of oestrogen cause

decrease of estrogen

777 - Which conditions are responsible for secretion of leutinizing hormone

both a and b

778 - Which hormone is responsible for ovulation

Leutinizing hormone

779 - Corpus leutium produces which hormone

progesterone

780 - The end or complete stop of menstrual cycle is known as

menupause

781 - If menstrual cycyle is not completed in 28 days and gets disturbed ,possible reason for this might be

all

782 - Ovulation takes almost how much time

less than 5 minutes

783 - When fertilization is nearly to take place cervical mucus is

thin and crystalline

784 - If fertilization does not occur then corpus luteum degenerates and it take place in which phase of reproductive cycle

secretory or post ovulatory phase

785 - Which hormone can be called as pregnancy supporting hormone

human chorionic gonadotropin

786 - Reproduction is essential for the survival of

both b and c

787 - Type of cell division in which chromosome content of the cell remains constant in successive generation is

mitosis

788 - Type of reproduction that requires only one parent is called

asexual

789 - Sperm and egg are produced by which type of cell division

miotic

790 - Reshuffling and recombination of genes is the characteristics of which type of cell division

meiosis

791 - Which one is the important factors in survival of species or population

All

792 - Artificial reproduction by asexual means

both a and b

793 - Natural reproduction by a sxeual means

All

794 - Disadvantage of cloning is

both a and b

795 - Tissue culturing in plants is regarded as

Artificial asexual

796 - In diplohaplontic life cycle of plants if the two generations are vegetatively similar it is reffered as

isomorphic

797 - If the plants have two distinct haploid and diploid generation this condition is reffered as

diplohaplontic life cycle

798 - Which of the following characteristics make the seed plants more adoptive and dominant

All

799 - Spermatophytes possess which important character for land adoptation

formation of pollen tube

800 - Which one of the following acts as vehicle for transfer of male gamete to ovule

pollen tube

801 - When haploid and diploid generation of plants regularly alternate with each other this condition in known as

alternation of generation

802 - In bryophytes green shoot is called

gametophyte

803 - Which generation of plants reproduces by sexual method

gametophyte

804 - In bryophytes male sex organ is known as

antheridium

805 - Female sex organ in bryophytes is

archigonium

806 - A physician or Gynaecologist specialises in

both a and b

807 - Which one is not a sexually transmitted disease

bacterial vaginosis

808 - Gpnorrhoa (sexually transmitted disease ) is caused by which bacteria

Neisseria gonorrhoeae

809 - Neisseria gonorrhoeae is a

gram negative bacteria

810 - In which disease mucus membrane of urinogenital tract is affected

Gonorrhoa

811 - If new born acquires serious eye infection then which disease do you think mother is suffering from

Gonorrhoa

812 - Damages to reproductive organs,eyes,bones,joints and skin occur in which disease

syphilis

813 - Syphilis is caused by which bacterium

both b and c

814 - Which disease is most frequently transmitted by sexual contact and cause infections of genitalia

genital herpes

815 - If during birth new born baby gets damage to eyes and CNS then mother is having which disease

genital herpes

816 - Effect of red light in flowering is reversed by

far-red

817 - Blue light sensitive protein pigments found in plants are

phytochrome

818 - Chrysanthemum,soyabean and strawbery are the example of

both a and b

819 - In cocklebur plant criticle dark period for flowering is about

8.5 hour

820 - In Henbane plants for flowering the the length of dark period is shorter than critical length and is about

13,hours

821 - Cucumber,maize and cotton are the examples of

Day neutral plants

822 - Light controlled development of form and structure of plants is known as

Photomorphogenesis

823 - Red light controls which of the following process in plants

All

824 - Phytochormes exists in which of the following two types

both b and c

825 - P730 absorbs which light for its conversion into P660

far red Light

826 - Ovulation is the process of

ejection of oocyte

827 - After ovulation ruptured follicle is transformed into a glandular structure known as

both b and c

828 - Site of fertilization is

all

829 - Initial part of female duct system is

oviduct

830 - oviduct has a longth of about

10 cm

831 - Site of implantation of embro is

uterus

832 - Uterus is also known as

womb

833 - Fundus,body and cervix are the portions of which structure

uterus

834 - Opening of cervix leads to which structure

vaginal canal

835 - Endometrium is the layer of

uterus

836 - Each ejaculatory duct empties into

both b and c

837 - A pair of seminal vesicle is present at the junction of

sperm duct and ejaculatory duct

838 - A pair of bulbourethral gland is located at the junction of

ejaculatory duct and urethra

839 - Smen is white sticky mixture of

sperms and secretions of accessory glands

840 - The amount of semen propelled during male ejaculation

2 to 5 ml

841 - Smen contains how many sperms per milli leter

20 to 150 million

842 - The process of sperm production is known as

spermatogenesis

843 - The process of spermatogenesis takes place in

seminiferous tubules

844 - Spermatogonia divide by which process to form primary spermatocytes

mitosis

845 - Primary spermatocytes give rise to secondary spermatocytes by

meiosis 1

846 - Honeybee males are

haploid

847 - Drones of honeybee produce sperm by means of

mitosis

848 - In honeybee if the haploid egg develop into haploid offspring it is called as

haploid parthenogenesis

849 - In aphids egg retain tha diploid number of chromosome and develop into young female without fertilization it is known as

diploid parthenogenesis

850 - In tissue culturing technique which tissue of plants is excised

cambium tissue

851 - In tissue culture technique which nutrients are supplied to cell for continuous growth

All

852 - Organisms produced from a single cell by subculturing (cloning) are called

clones

853 - In vertebrates for cloning nucleus of which cell is used

somatic cell

854 - Effect of action of antibodies,hormones,drugs can be effectively studied on

cloned cells

855 - Identical twins are formed by

separation of blastomeres

856 - If fertilization is internal and development is external then how harsh conditions are avoided

shelled eggs

857 - In oviparous animals which type of fertilization is common

internal fertilization

858 - Egg laying mammals are called

oviparous

859 - Animals which give birth to young one are called

viviparous

860 - Internal fertilization and internal development takes place in which class of mammals

viviparous

861 - If the internal development of young takes place in shelled egg and on complete development egg hatches this is known as

ovoviviparity

862 - Which one of the following provide more protection to their developing youngs

ovoviviparous

863 - Male reproductive system consists of

All

864 - Which one of the following is accessory duct of male reproductive system

both a and b

865 - Which one of the following is accessory gland of male reproductive system

seminal vesicles

866 - Which of the following reproductive tract diseases is caused by virus

both b and c

867 - World wide sexually transmitted disease is

AIDS

868 - Male gonads are

testes

869 - Skin pouch outside tha testis is called

scrotum

870 - Eech testis is divided into how many lobules

270 to 300

871 - Each lobule in human testis contains how many seminiferous tubules

one to four

872 - Spermatozoa move through the seminiferous tubule amd enter into which network for maturation

rete testis

873 - Spermatozoa are transported out of the testis by which duct

efferent ductules

874 - Which one is responsible for transport and storage of the sperms

epididymus

875 - Temperature inside testes is

35°

876 - The process of spermatogenesis takes place effeciently at temperature of

35°

877 - Epididymus is coiled around the testis and opens into

into vas deferens which joins ejaculatory duct

878 - Leyding cells are stimulated by

LH

879 - Which hormone is responsible for growth and development of germinal epithelium to form sperms

testosterone

880 - The hormone responsible for normal spermatogenesis is

inhibin

881 - Hormone inhibin is produced by which type of cells

sertoli cells

882 - Which of the following Hormone inhibits the secretion of LH and FSH from anterior pituitary

testosterone

883 - Components of female reproductive system

All

884 - Each ovary is held in place within peritoneal cavity with the help of

ligaments

885 - Ovaries are solid ,ovoid structures which measure in length about

3 to 5 cm

886 - Approximate width of ovary is about

2 to 3 cm

887 - Ovarian follicles contain

All

888 - Which of the following is known as sperm deformities

changes in sperm shape

889 - If antibodies are made against sperm by the males body than this infertility is referred to as

Autoimmune disorder

890 - Some chemical can interfere with endocrine glands and their hormones or their torget tissue and disturb the reproductive rate are called as

endocrine disrupting contaminants

891 - Which chemical can disturb the human fertility rate

DDT(dichloro diphenyl trichloroethane

892 - If hypothalamus and pituitary fail to prduce FSH and LH this condition in females can cause

Failure to ovulate

893 - If due to some infections fallopian tube is blocked this type of infertility in females is called

blocked oviduct

894 - Uterus damage may result from

both b and c

895 - When small pieces of endometrium start growing on other places may be in ovary it becomes different for an egg to be released this condition is known as

endometriosis

896 - If the first day of menstrual loss is 1st april on which date a woman is most likely to ovulate

44665

897 - If pregnancy is established then what happens to ovulation and menstruation during gestation period

remain stop

898 - Uterus comprise of

All

899 - Smooth muscles of which layer contract during child birth to expel the baby

myometrium

900 - Which one is the inner spnogy lining of the uterine cavity

endometrium

901 - Young embryo is implanted and remains in which layer of uterus untill birth

endometrium

902 - A narrow entrance from vagina to uterus is

cervix

903 - Vagina is a thin walled long tube length of about

8 to 10 cm

904 - Vagina is also called as

birth canal

905 - Which of the following is the function of female reproductive system

All

906 - The process of egg formation in females is known as

oogenesis

907 - The process of oogenesis starts in female

in foetal stage

908 - Fraternal twins or triplets are formed by

fertilization of more than one egg

909 - Which of the following are the characteristics of mitosis

both b and c

910 - Which process is necessary to prevent the doubling of chromosome in next generation

both b and c

911 - Less differentiated animals and micro organisms usually posssess

mitosis

912 - Large number of offspring can be obtained by which mechanism

mitosis

913 - Advance mode of sexual reproduction in animals involves

unisexuality

914 - In plants which type of sexuality is retained

both a and b

915 - Aquatic environment usually supprots which type of fertilization

external fertilization

916 - Which type of fertilization occurs in terrestrial environment

internal fertilization

917 - In internal fertilization development may be

both a and b

918 - Which conditions cause labour pain

All

919 - Which hormone provides the force to expel fetus from uterus

oxytocin

920 - Separation of placenta from uterus takes place

10 to 45 minutes after birth

921 - Removel of placenta is known as

after birth

922 - Correct sequence of outer embryonic membrane

Amnion,allontoise,chorion

923 - Average loss of blood in a delivery is about

350 cubic centimeter

924 - Failure to achieve pregnancy is known as

infertility

925 - State of having no sperms is known as

Azoospermia

926 - Azoospermia in males is usually caused due to

blockage in sperm ducts

927 - Oligospermia is condition of

having less than normal amount of sperms

928 - Respiratory activity climacteric is associated with production of

ethane

929 - When shoot meristems start producing floral buds ,flowering at that time is mainly affected by

photoperiod

930 - Photperiod and temperature affect which one

All

931 - Photoperiodism was first studied by

both a and b

932 - Tobacco plant is a

both a and b

933 - Plants in which flowering take place regardless of the effect of photoperiod are called

day neutral plants

934 - Which of the following is actually critical for for onset of flowering in plants

length of dark period

935 - If the short day plants are interrupted by short light perid at night then what happens

flowering is prevented

936 - Which light effects the flowering in plants

red

937 - Which light is effective in preventing flowering

red

938 - Primary spermatocytes are

diploid

939 - Secondary spermatocytes differentiate into

spermatids

940 - Secondary spermatocytes differentiate into spermatids by the process of

meiosis11

941 - Round, non motile,haploid thess are the characteristics of

spermatid

942 - Motile and active spermatid is called

sperm

943 - In a healthy adult male,how mamy sperms formed every day

400 million

944 - Process of spermatogenesis is controlled by the hormones of

both b and c

945 - Secretion of FSH and LH is controlled by which hormone of hypothalamus

Gonadotropin releasing factor

946 - Which cells nousirh the sperms

sertoli cells

947 - Sertoli cells are stimulated by which hormone

FSH

948 - Which cells help in fertilization by guiding the pollen tube

synergids

949 - Two polar nuclei fuse to form

fusion nuclei

950 - Union of one sperm with egg and other with fusion nuclei is known as

double fertilization

951 - How many synergid cells are found in embryo sac

two

952 - How many antipodal cells are found in embryo sac

three

953 - Double fertilization is found in

angiosperms

954 - Fruit development without fertilization is known as

parthenocarpy

955 - Parthenocarpy can be induced artificially by using which chemical

auxins

956 - After fertilization fusion nucleus develops into which structure

endosperm

957 - Source of food for yound embryo is

endosperm

958 - Oogonia surrounded by single layer of follicle cells are known as

primary follicle

959 - Meiotic division begins in

primary follicle

960 - The primary oocytes cannot complete mieosis and is arrested in

prophase 1

961 - Through child hood about 10 to 14 years primary follicles in female remain in the state of

prophase 1

962 - Primary oocytes are

diploid

963 - Secondary oocytes are

haploid

964 - Primary oocyte divide by meiosis and produce

all

965 - In human female secondary oocyte is arrested in

metaphase 11

966 - If secondary oocytes is fertilized ny ovum it completes meiosis 11 and yields

both a and b

967 - The main reason for degeneration of polar bodies is

both a and b

968 - Multicellular structure in which male and female sex organs are intermixed are

paraphyses

969 - If the two sex organs are found on the same plants the condition is known as

monoecious

970 - If the male and female gamte are found on the separate plants this condition is known as

dioecious

971 - In bryophytes sporophyte generation consists of

all

972 - Spore in sporophyte generation are formed by

meiosis

973 - In moss plant spores germinate to form an alga like structure called as

protonema

974 - Opening in ovule is called

micropyle

975 - Megasporocyte of the ovule undergoes meiosis to form how many haploid cells

four

976 - Which division take place in megaspore to form two haploid nuclei

two

977 - Which cells are found in embryo sac

All

978 - During day a plant contains which form of phytochromes

P730

979 - At night time plants contain which phytochrome more

P660

980 - For measuring the duration of darkness which mechanism provide a clock to plants

conversion pf P730 to P660

981 - Biennials and perennials are stimulated to flower at low temperature this is called

vernalisation

982 - Plants in which vernalisation occurs low temperature is received by which parts of plant

both a and b

983 - Which hormone is responsible for the induction of vernalisation in plants

gibberellins

984 - Which mechanism is responsible for synchronization of reproductive behaviour of plants with their environment

both a and b

985 - Common asexual method of reproduction in animals are

All

986 - Parthenogenesis takes place in which of the following animals

both a and b

987 - In honeybees male develop by

parthenogenesis

988 - Most birth control pills contain which hormone

progesterone

989 - Total gestation period in human female is about

both b and c

990 - Which hormone is secreted by placenta

progesterone

991 - Premature birth and miscarriage occur due to defficiency of which hormone

progesterone

992 - Human placental lactogen is secreted by

placenta

993 - Development of mammary glands for lactation is done with which hormones

both b and c

994 - In the beginning of 3rd month of pregnancy human embryo is known as

fetus

995 - Most of the organs are formed by the

12th week of pregnancy

996 - Initial stage of birth is stimulated by

fetal hormone

997 - Decrease in progesterone production in mother is stimulated by which hormone of fetus

corticosteroids

998 - Endosperm is

triploid

999 - The embryo consists of

All

1000 - A mature ripened ovary is known as

fruit

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