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1 - The part of blastoderm that forms most of the actual embryo is?
Area pellucida
2 - Basic taxonomic unit is called?
Species
3 - The conversion of fibrinogen to fibrin is catalysed by enzyme?
Thrombinase
4 - The class of Corals is?
Anthozoa
5 - A specie that can inhabit different geographical areas is known as?
Allopatric
6 - Viral DNA incorporate into bacterial DNA called?
Prophage
7 - From __ bonds of ATP molecule energy is taken.
P – P bonds
8 - Which among following store foods?
Leucoplast
9 - __ is responsible for transporting food substance through out plant body.
Phloem
10 - The endometrial breakdown occurs due to decrease of?
Progesterone
11 - Humans are classified in the order?
Primata
12 - The virus used during cell fusion techniques is called?
Sendai
13 - A vitamin that has an important role in the formation of collagen fibers and prevention of scurvy is:
Ascorbic Acid
14 - Living __ are scaleless.
Hagfishes
15 - Which is the first step in many DNA based technologies?
Isolation
16 - During which of the following stages of the cell cycle will a diploid cell contain twice the amount of DNA found in gamete?
G1 Phase
17 - Which of the following is absent in xylem of gymnosperm?
Vessels
18 - Minerals absorbed by roots move to leaf through:
Xylem
19 - At level above ___ sound turns into harmful noise pollution.
80 db
20 - These are well known for their high potential fecundity?
Fish
21 - The development of the whole individual is technically termed as?
Ontogeny
22 - An organism that has escaped from domestication and returned, partly or wholly to a wild state is called?
Feral
23 - The jelly like interior of the cell is called the?
Cytoplasm
24 - Earthworm is a __ feeder.
Detritus
25 - Which of the following is not the function of testosterone?
Aids sperm maturation
26 - Identify the input sequence format in BLAST?
FASTA
27 - If organic co factors are loosely attached with the enzymes they are called?
Co enzymes
28 - Endoplasmic reticulum is lacking in:
All of the above
29 - Bippinaria is the larval form of:
Echinoderms
30 - Species that occur in different geographical regions separated by special barriers are?
Allopatric
31 - Hensen's node in chick embryo is equivalent to?
Dorsal lip of blastopore
32 - Prokaryotic cells ribosomes are slightly __ than eukaryotic ones.
Smaller
33 - A person with viral load of HIV-1 leads to?
AIDS
34 - Fleas are the feeders of?
Blood
35 - By product of bacterial photosynthesis is?
Sulphur
36 - Statocyst, as found in various gastropods, cephalopods, crustaceans are good example of?
Georeceptor
37 - An example of immoveable joints is?
Joints of skull
38 - Mesenteries are found in?
Anthozoa
39 - Which is the correct order of parts of air passage ways in man?
Nostrills, Nasal cavity, Pharynx, Larynx
40 - It is a mutation occurs in gametes by chance?
Germinal mutation
41 - Where is the bile produced in the human body?
Liver
42 - Green glands are found in?
Cray Fish
43 - Which is the largest single cause of loss of biodiversity?
Hebitat destruction
44 - The perianth is the term used when?
Calyx and Corolla are similar
45 - How many kind of individuals would be produced if the genotypes of the parents are AaBbCc and AABBCc:
16
46 - Which of the following molecule is incorrectly paired with its source?
Immunoglobulins- Neutrophils
47 - The muscular passage that is common to both food and air is called?
Pharynx
48 - Which of the following genotypes would produces the greatest variety of gametes if the alleles assort independently?
AaBbCCDd
49 - Rhynia was discovered by?
Both A & B
50 - DNA is synthesized by an enzyme known as?
DNA Polymerase
51 - Why is there is no duplication of DNA between Meiosis-I and Meiosis-II?
To reduce the chromosome number to haploid in the resulting daughter cells
52 - Cytoskeleton provides?
Motility, Maintenance and Synthesis
53 - CO2 enters the plasma membrane through?
Passive Diffusion
54 - The breakdown of alveoli occurs in?
Emphysema
55 - What kind of areas are known as arid areas?
Areas deficient in Rainfall
56 - The word Biology derived from the two ___ words.
Greek
57 - Glycolysis converts?
Glucose into pyruvate
58 - Which of the following determine rate of transpiration in plants?
Potometer
59 - The amount of lactic acid in muscles increases when they are lacking in:
Oxygen
60 - In blue green algae photosynthesis takes place in?
Thylakoids
61 - Poison of honey bee is?
Acidic
62 - Nucleoli seem to appear in?
Telophase
63 - Proteins are made in the cells under the instructions of?
Genes
64 - Some minerals are needed in relatively large amount and are called?
Macrominerals
65 - Rats and mice have estrous cycle that repeats every?
4-6 days
66 - Female sex organs of bryophytes is called?
Archegonium
67 - MacConkey agar is widely used for the selection of?
Gram-ive strain
68 - Prop or Pillar roots are found in?
Banyan
69 - which chemical present in cigarette smoke causes cancer?
Nicotine
70 - Identify which is not a thermostable polymerase?
DNA Polymerase
71 - Which of the following subdivisions of animal kingdom encompasses all others in the list?
Bilateria
72 - Watson-Crick model suggested that DNA replication is?
Semi-Conservative
73 - Maggots are usually larvae of?
Diptera
74 - In the vertebrate eye the light first passes through the?
Cornea
75 - Which of the following type is involved with create currents during filter feeding of a sponge?
Choanocytes
76 - Blood group system ABO was discovered by?
Landsteiner
77 - ___ cellular organelle have their own DNA.
Mitochordria
78 - 7.3 Kilo calories/mole energy is equal to ___ cal/mol energy.
7300
79 - How many types of tRNA are found in eukaryotic cell?
60
80 - Compared to human a diving mammal of equal size has:
Large lungs
81 - Seeds can be best preserved in?
Cool and dry conditions
82 - The state of the conception that implants in the uterine wall is?
Blastocyst
83 - Simplest oxygen producing organisms are?
Cyanobacteria
84 - An example of aerobic bacterium is?
Pseodomonas
85 - DNA is chiefly found in?
Chromatin
86 - ___ is reversal of Prophase.
Telophase
87 - When DNA is extracted from cells of E.coli and analysed for base composition, it is found that 38% of the bases are cytosine. What percentage of the bases are adenine?
12%
88 - The universal hydrogen acceptor is?
NAD
89 - Tertiary structure of proteins represents?
Physical and Chemical structure
90 - True bacteria belongs to?
Eubacteria
91 - Combination of Darwinian evolutionary theory and population genetics is referred as?
Modern synthesis
92 - The vertebrate liver function in all of the regulatory processes except?
Osmoregulation by variable excretion of salts.
93 - The canal between the kidney and the urinary bladder is named as?
Ureter
94 - which of the following vitamin needed to form collagen that give strength to connective tissue?
Vitamin C
95 - Which of the following is not Carbohydrate?
Hemoglobin
96 - Which type of cell you will prefer to take the nucleus for cloning?
Embryonic cells
97 - During hibernation frog respires by?
Skin
98 - Which of the following is an egg laying mammal?
Spiny Anteater
99 - Mostly herbs are found in?
Brassicaccae
100 - This factor is necessary for transcription initiation in prokaryotes?
Sigma
101 - A stele without a central pitch is called a?
Protostele
102 - During which stage in cardiac cycle are the semi lunar valves shut?
Ventricular Diastole
103 - The protection, improvement and wise use of resources in known as?
Conservation
104 - Environmental factors are also called as:
Ecological factors
105 - Where are histamine secreting cells found?
All of the above
106 - Hardest part of teeth is called?
Enamel
107 - Open water at sea floor is called?
Benthic Zone
108 - Which organelle prepares proteins?
Golgi Bodies
109 - Fat soluble vitamins are?
A,D,E,K
110 - Thymine dimmers damage in DNA produced by __ radiations.
Ultraviolet
111 - The template to make cDNA is:
mRNA
112 - The outermost layer of human eye consists of?
Both A & B
113 - Mechanism of intake of DNA fragment from the surrounding medium by a cell is called?
Transformation
114 - Choose the pair that completes the sentence: Hydroxyl is to __ as __ is to aldehyde.
Alcohol; Carbonyl
115 - Animals obtain carbohydrates from?
Starch
116 - The color of brown fat is due to large number of mitochondria with cytochromes containing:
Iron
117 - Plants that grow in saline water are called?
Halophytes
118 - Ions can not cross the plasma membrane through?
Phospholipid Bilayer
119 - Mendal was Austrian?
Monk
120 - What is the length of human kidney?
10 CM
121 - How many quanta are required to reduce one molecule of CO2?
8
122 - Pneumonia is a respiratory disorder caused by_______?
Bacteria
123 - Enzymes required for transcription is?
RNA Polymerase
124 - The main target organ for trophic hormones are?
Endocrine Glands
125 - The enlarged ripened ovary is called?
Fruit
126 - In Hydra the absence of circulatory system is filled by?
Coelenteron
127 - The retention of the larval forms and structures in adults is known as?
Paedomorphosis
128 - Madreporite is present in?
Sea Star
129 - NADH is oxidized by?
Co enzymes Q
130 - Insulin is a protein responsible for?
Regulation of Glucose
131 - RNA polymerase I transcribes __ in the nucleolus.
rRNA
132 - The largest unit in which gene flow is possible is?
Species
133 - Polymorphism is a characteristic of phylum?
Cnidaria
134 - Sycon belongs to class?
Hexatinellida
135 - Evolutionary mechanisms consists of population size, genetic drift and?
Natural selection
136 - The arboreal adaptations are those that help the animal to line in or on?
Trees
137 - In which phase crossing over occurs?
Prophase-1
138 - Oxygen in glucose during photosynthesis comes from?
Carbon Dioxide
139 - The spinning of web by a spider is an example of?
An instinct
140 - Which part of the brain detects temperature changes in the blood?
Hypothalamus
141 - Vertebrate photoreceptors __ in response to stimulus.
Hyperpolarization
142 - Cells involves with the nourishment, support and protection within the nervous system are called?
Glial cells
143 - Amount of oxygen carried by 100ml of blood?
20 ml
144 - They are the outgrowth of somatic hyphae which the fungus sink into plant host cells through minute pores in the cell wall?
Appressoria
145 - In which of the following group would you place a plant which produces spores has vascular tissue and lacks seed?
Pteridophyta
146 - No of ATPs produced by each NADH?
3
147 - A variant of gene is called?
Allele
148 - An activated enzyme consisting of polypeptide chain and a cofactor is known as?
Holoenzyme
149 - E.Coli is?
All of the above
150 - Which of the following toxic metal is extensively present in the newspaper?
Pb
151 - A semi-indispensable amino acid for human consumption is:
Leucine
152 - Xerophytes are Plants which grows in ________
Air Environment
153 - The sequence of three bases on messenger RNA is called?
A condon
154 - Glycolysis and Kreb's cycle are regulated by the enzyme?
Phosphofructokinase
155 - Lipase enzyme acts on?
Lipids
156 - In insects __ layer of exoskeleton is alive and secretes the upper, non living layer of the exoskeleton.
The epidermis
157 - which one is not a lichen thallus?
Tolypella
158 - which bioelement is found 2% by mass in protoplasm of living organism?
Calcium
159 - Identify the pollutant responsible for the curling of leaves?
SO2
160 - Which organ of body is responsible to filter the blood?
Kidney
161 - In the embryonic stages the RBCs are formed in the spleen and?
Liver
162 - Calmodulin, a cytosolic protein has ___ binding sites for calcium.
4
163 - Fruit in family fabaceae is?
Legume
164 - The enzymes belongs to __ category of molecule.
Proteins
165 - Which of the following is not an amino acid?
Palmitic Acid
166 - Continuing and intimate association between two different species called?
Symbiosis
167 - One difference between a cancerous cell and normal cell is that?
Cancer cell continue to divide even when they are tightly packed.
168 - All of the following are parasitic worms except the?
Ring Worm
169 - Curding of milk in stomach is due to?
Rennin
170 - Which is involved in social behaviour, sexual reproduction and during birth
Oxytocin
171 - Chemical nature of enzymes is?
Proteins
172 - At present the most significant cause of dwindling biodiversity is probably:
Destruction of habitat
173 - Terrestrial biodiversity is found to be greater near the __.
Equator
174 - Number of cotyledons in Zea mays, Cycas and Pinus individually are?
1,2,Many
175 - Storage site for intracellular calcium is?
SER
176 - Which part of the brain detect temperature changes?
Hypothalamus
177 - Adrenal gland is the derivative of?
Ectoderm and Mesoderm
178 - The archenteron develops into:
Lumen of digestive tract
179 - Total number of elements occur in nature are?
92
180 - Envelope could be present in?
Virion
181 - The one environmental problem that is the root of environmental problem is?
Over population
182 - As a result of glycolysis in a cell:
Glucose is converted into pyruvic acid.
183 - The process by which outside cell layer moves towards the deeper layer of embryonic cells is?
Emboly
184 - Virus is an __ entity between living and non-living.
Transitional
185 - Deficiency of iron causes?
Anaemia
186 - When individual somatic cells contain three sex chromosomes XXX this is called?
Super female
187 - Who created the first rDNA molecule?
Paul Berg
188 - Plants of Hepaticopsida are usually known as?
Liverworts
189 - One way of cleaning up the environment after an oil spill is through the use of?
Bacteria
190 - Natural surroundings are called?
Habitat
191 - The positive charge on histones is due to an abundance of following amino acids?
Arginine and Lysine
192 - Termite belong to:
Isoptera
193 - SIWALIK term first time coined by?
Cautley
194 - Which of these results from aneuploidy?
Turner's syndrome
195 - Cyanobacteria move by?
Gas vesicles
196 - The complementary RNA sequence for GATGTT is:
CUACAA
197 - Researchers are seeking to improve the genetic traits of fish used in aquaculture by using different __ techniques.
Transgenic
198 - Most of ATP made during cellular respiration is penetrated by:
Oxidative Phosphorylation
199 - Meiosis II is similar to mitosis in that:
Sister chromatids separate during anaphase
200 - Deficiency of iodine causes?
Goiter
201 - who introduced binomial nomenclature system?
Corolus Linnaeus
202 - In annelida chloragogen tissue converts excess carbohydrates into energy storing molecules of?
Both A & B
203 - Which of the cells contains large amount of oxygen carrier protein haemoglobin?
Erythrocytes
204 - Which of the following is known as stone worts?
Chara
205 - In mixed inhibition inhibitor binds to?
Can bind to the Active and Allosteric site at the same time
206 - Which of the following dry fruits is obtained from a gymnosperm?
Chilgoza
207 - This chemical inhibits protein synthesis in prokaryote?
Chloramphenicol
208 - Myelin sheath is derived from the?
Neuroglial cells
209 - Percentage of water in protoplasm of all organisms is?
60-70%
210 - Partially decomposed organic matter is called?
Peat
211 - Sex linked genes refer to the genes?
Present on sex chromosomes
212 - The virus commonly used to infect cell cultures for the production of interferon is called?
Sendai virus
213 - Hepatic portal veins carries blood from?
Alimentary Canal
214 - Cancer causing genes are?
Oncogenes
215 - Dengue fever is transmitted by?
Aedes Mosquito
216 - To preserve nature and wildlife there are several areas declared generally as?
Protected areas
217 - What are the tiny bumps on the tongue called?
Taste buds
218 - Which of these animals is a carnivore?
Lion
219 - Who coined the term mutation?
De Varies
220 - Staphylococcus aureus was isolated by?
Louis Pasteur
221 - Which group contains advanced organisms?
Cephalopods
222 - The mature bone cells are called?
Osteocytes
223 - Which one is not a reactant of photosynthesis?
O2
224 - Typhlops is a?
Blind snake
225 - The C4 photosynthetic process was discovered by?
Both B & C
226 - Hereditary material that controls the properties and potential activities of a cell is?
DNA
227 - Saliva helps in the digestion of?
Starch
228 - Plasmolysis is the shrinkage of protoplast due to?
Exosmosis
229 - How can we determine the age of oak tree?
Secondary Xylem and Vascular Cambium
230 - Totipotency has shown by?
Meristem
231 - Why are there more males with color blindness than females?
The recessive gene is usually masked by another X chromosome in female.
232 - Genetic divergence of two populations can be counted by?
Genetic drift
233 - This is not the character of Primates?
A Cloaca
234 - In Alpha helix H-Bond is present between NH2 and __ group.
COOH
235 - Which nitrogenous waste product is the most toxic and is produced only in insects that live in water?
Ammonia
236 - Ginger is a?
Stem
237 - Which of the following binds to the active site of an enzyme?
Competitive Inhibitor
238 - This protein has antiviral activity?
Interferon
239 - Who coined the term protoplast for the first time?
Hanstain
240 - Viral DNA incorporated into bacterial DNA is called?
Prophage
241 - Acetaldehyde is reduced with NADH in the presence of alcohol dehydrogenase into:
Ethanol
242 - RNA does not Contain?
Thymine
243 - ___ enzymes which are used in dish washing to remove resistance.
Amylase
244 - Which of the following is a trisaccharide?
Raffinose
245 - Which of the following is correct with for aneuploidy?
2n+1
246 - National fish of Pakistan is?
Rahu
247 - If spermatogenesis is normal in all cells, how many sperms will result from 50 primary spermatocytes and 50 spermatids?
200, 50
248 - The nitrogenous base that pairs with adenine is called?
Thymine
249 - Ring form of ribose sugar is known as?
Ribofuranose
250 - Decreased in pH of human blood caused by exercise would:
Increase heart rate
251 - All of the following substances pass through cell membrance except?
H+
252 - Essential constituent of plant cell is which type of carbohydrate?
Starch
253 - Virus classified into many groups on basis of?
All of the above
254 - Plant organs are formed by which type of meristem?
Apical meristem
255 - O2 released in the process of photosynthesis comes from?
Water
256 - Term pleiotropy is explained when?
Single allele affects a multiple phenotypic trait
257 - Puffs in insects are controlled by?
Ecdysone
258 - Which of the following is highly developed in the class Aves of the animal kingdom?
Cerebellum
259 - Site for the active synthesis of ribosomal RNA is ___ .
Nucleolus
260 - The cell wall made up of non cellulose compounds is found in?
Fungi
261 - ___ organelle is not bounded by membrane.
Ribosome
262 - The specimen on which taxonomic description is based?
Holotype
263 - Deficiency of Ascorbic acid causes?
Scurvy
264 - Insulin has 51 amino acids which are arranged in polypeptide chains having?
20 and 31 Amino Acids
265 - Mature sperms are stored in the?
Epididymis
266 - The most common chemical in primary cell wall is?
Cellulose
267 - Which of the following bonds are responsible for establishing secondary structure of proteins?
Hydrogen
268 - Hexokinase enzyme plays a role in?
Glycolysis
269 - Smallest organelle in a cell is?
Ribosome
270 - Algae found in molluscan shell?
Cladophora
271 - Savannah are?
Grassland with scattered trees
272 - Secondary cell wall of plants is?
Located inside the primary wall
273 - This step is absent in Calvin cycle?
Oxidation
274 - Proglottids in Tapeworm proliferate?
From the head or scolex
275 - The experiments are most likely performed to test for:
Intraspecific competition
276 - Transcription starts at start codon __ that codes for methionine.
AUG
277 - Discoloration of teeth in children may be caused by?
Tetracycline
278 - Which scientist performs experiments of malari on sparrows?
Ross
279 - Most mammals have __ set of teeth during their life.
2
280 - Which one of the following is a very unique feature of the mammalion body?
Presence of Diaphram
281 - The resolution power of human eye is?
0.1 mm
282 - Cyclic AMP activates enzyme?
Protein Kinase
283 - Correct molecular formula for chlorophyll 'a' is?
C55H72O5N4Mg
284 - After surgical removal of an infected gall bladder a person must be especially careful to restrict his/her dietary intake of:
Fat
285 - Which of the following is not the character of most of the plants?
Presence of Centrioles
286 - Which of the following properties of water allow certain insects to stand on the surface?
Cohesion between water molecules
287 - Proteins that are used only outside the cell are synthesized on?
RER
288 - In glucose molecule the number of asymmetric carbon is?
4
289 - Pesticide comprise of?
All of the above
290 - Which of the following is the example of Gram negative bacteria?
Escherichia Coli
291 - The root which develop from any portion of the plant except the radical is known as?
Adventitious root
292 - RNA polymerase III transcribe the gene/s of?
tRNA
293 - Which group does not contain polyp?
Calcarea
294 - Quinine is obtained from the bank of the tree?
Cinchona
295 - A specialized much reduced short underground stamp composed of broadly conical disc is called?
Bulb
296 - Which one is not submerged hydrophyte?
Wolfia
297 - Silk thread is obtained from silk moth during?
Pupal stage
298 - The alcoholic fermentation is produced by?
Yeast
299 - Eggs in Culex mosquitoes are:
Cigar-shaped
300 - __ are the agents that causes uncrolled growth of cells.
Carcinogens
301 - First step in the photosynthesis is?
Excitement of an electron of chlorophyll by photon of light
302 - Deficiency of protein is called?
Kwashiorkor
303 - Bacteria are helpful in the recycling of?
All of the above
304 - During meiosis when does synopsis occur?
Prophase 1
305 - If a man passes a disease to all of his daughters and not to a son then it is?
Sex linked dominant trait
306 - Blood fibrinogen is converted into fibrin during:
Clot formation
307 - Middle layer of human eye is called?
Choroid
308 - Competitive inhibitor effect on enzyme activity?
Decreases enzyme activity
309 - Lock and key model of enzyme action is proposed in which year?
1894
310 - Memory loss occurs in?
Alzheimer's disease
311 - Growth hormone secreted by pituitary gland regulates the function of?
Most of somatic tissues
312 - ___ is sensitive layer of eye.
Retina
313 - A biome with dry and rainy seasons, trees in patches and ground cover of tropical bunchgrass is called:
Savanna
314 - Spider bite can also cause?
Necrosis
315 - A hormone that stimulates the production of cortisone is:
ACTH
316 - Function of Urokinase enzyme is to?
Dissolve blood clots
317 - Prions are made of?
Proteins
318 - Villi are found in?
Small intestine
319 - Sickle cell disease in human is due to?
Missense mutation
320 - Isotopes of atoms differ in?
Number of neutrons
321 - Antibiotics inhibit or kill?
Bacteria
322 - Which of the following virus has causes thounsands of deaths globally as an emergent virus?
OC43
323 - Each turn of DNA contain __ nitrogenous base pairs.
10
324 - Complex camera eyes of squid is different from vertebrate's eye in?
Having retinal layer with receptor site facing the direction of light.
325 - Rhizopus reproduces asexually by?
Spore formation
326 - What is the name of functional kidneys in fishes?
Mesonephros
327 - Which plant is a moss?
Polytrichum
328 - Identify incorrect statement about viruses?
Resistant to broad spectrum antibiotics only
329 - The greatest exchange of glucose and oxygen between vertebrate blood and body tissues occurs through the:
Capillaries
330 - What do we call the openings in the skin?
Pores
331 - Which of the following essential element can plant normally obtain directly from air?
C
332 - Breathing rate of man is lowest while:
Resting
333 - Which compound is not directly involved in the process known as translation?
DNA
334 - The process in which the Pyruvic acid molecules are completely oxidized is called?
Krebs Cycle
335 - Pancreas consists of what type of cells?
Both B & C
336 - Which muslim scientist born in iran and practiced medicine in Iraq?
Jabir Bin Hayan
337 - The example of three carbon molecules is?
Pyruvic acid
338 - Hepatic artery supplies blood to?
Liver
339 - Electric eel can deliver shock in excess of?
500 Volts
340 - Radiation can cause?
Leukemia
341 - Turner's syndrome?
The cell contains 45 chromosomes
342 - The root like and leaf like structures of a moss and the roots and leaves of a vascular plant are?
Analogous Structures
343 - The most important foods are derived from?
Fruits
344 - Normaly sex linked genes are located on X chromosome in man this indicates that?
X chromosme is longer than Y chromosome
345 - Which of the following combinations of phylum and description is incorrect?
Porifera-gastrovascular cavity; mouth from blastopore.
346 - Wildlife of Pakistan include a unique aquatic mammal protected by various wildlife agencies?
Blind Dolphin
347 - Division of nucleus is known as?
Karyokinesis
348 - Cardiac muscles are present in the walls of?
Heart
349 - Corticotropin-releasing hormone stimulate synthesis or secretion of?
ACTH
350 - Biological active hormonal form of vitamin D is?
Calcitrol
351 - Nucleic acids absorbs ultraviolet light at?
260 nm
352 - Black rust of wheat is caused by?
Puccinia
353 - Leaf margins and veins become yellow and brown due to the deficiency of?
Potassium
354 - Acute form of arthritis results from?
Bacterial attack
355 - Seed habit originated in?
Pteridophytes
356 - Re initiation of DNA duplication within the same cycles prevented in?
Viruses
357 - Photosynthesis and Respiration requires?
Cytochromes
358 - Organ Pipe Coral is?
Tubipora
359 - When organic co factors are tightly bound to enzyme they are called?
Prosthetic group
360 - Cell wall in Fungi is made up of?
Chitin
361 - Promotes may activate the oncogenes by inhibiting the action of?
Suppressor Genes
362 - The largest Taxon is?
Kingdom
363 - In plants gametes are produced by?
Mitosis
364 - Photosynthesis is required for the existence of?
Plants and Animals
365 - Which is not a larva of sponge?
Planula
366 - An apoenzyme attached with its coenzyme makes a?
Holoenzyme
367 - Insufficient thyroxine in adults causes the disorder?
Goiter
368 - Nerve impulses are conducted towards cell body by?
Dendrites
369 - Large scale study of protein is called?
Proteomics
370 - which light carries out more photosynthesis?
Blue, Red
371 - __ number of molecules of CO2 are produced by an acetyl group of acetyl-Co-A in a citric acid cycle?
2
372 - Which among gives blue colour with iodine?
Starch
373 - Which of the following can accelerate masculinization?
Androgens
374 - Which symbiosis help in the absorption of P and S?
Fungi
375 - Who coined the term Homeostasis to describe the tendency towards internal stability?
Walter Cannon
376 - Which teeth are different in size and function?
Heterodont
377 - In female fishes expression of FSH is associated predominantly with?
Both B and C are correct
378 - These are Schizoceolic phyla?
Annelida, Arthropoda and Mollusca
379 - Most of the biological diversity gas probably arisen by?
Cladogenesis
380 - Studies that involve a single dose or exposure of very short duration are?
Acute
381 - The synthesis of polypeptide chain begins with which of the following amino acids?
Methionine
382 - What is the unit of Genetic map?
Centimorgan
383 - Cockraoches are:
Omnivorous
384 - How many times larva of Ascaris moults before becoming an adult?
4
385 - Blood pressure in veins is?
Low
386 - Who introduced five Kingdom classification system in 1967?
Robert Whittaker
387 - A scientific law or principle is an irrefutable?
Theory
388 - Which of the following structure function is mis-matched?
Microtubule-Muscle Contraction
389 - Identify true statement regarding green house effect.
Caused only by CO2, CFC, CH4 and NO2 gases
390 - Which of the following organ words as a 'Blood Bank' and also 'Grave Yard' of blood corpuscles?
Spleen
391 - End part of the chromosomes is called?
Telomere
392 - nucleolar organizer contains __ tRNA genes.
45
393 - __ water makes composition of the protoplasm of all living things.
60-70%
394 - Sandalwood tree is considered a?
Partial root parasite
395 - In which phase of Meiosis Tetrad of chromosomes are formed?
Prophase 1
396 - One gram of Carbohydrates contains how much energy?
4 K Calories
397 - If gastric juice is tested with a pH meter the pH is mostly likely to be about?
2
398 - Biodiversity is richer in?
Tropics
399 - Which of the following is initiation codon?
AUG
400 - Two or more species occupying identical or overlapping areas are known as?
Sympatric
401 - Trisomy of ___ leads to Patau's syndrome.
13th Chromosome
402 - Sarcomere attach end to end to form?
Myofibril
403 - Thyroid gland secretes __ hormone beside T3 and T4?
Calcitonin
404 - Find a mismatch from the following?
Tempelate-Double standard DNA
405 - Which one of the following is not included in single gene effect mechanism?
Yeast
406 - The communication between animals in physical contact each other is referred as?
Tactile communication
407 - In 1883 AFA King listed how many observations about malaria?
20
408 - Smooth muscles, cardiac muscles and glands are regulated by?
Autonomic nervous system
409 - Out of the following which is not a stop codon?
GUG
410 - Linker region have __ base pairs when nucleosome after every 200 base pairs.
34
411 - Wood is the basic raw material used in the manufacturing of?
Paper
412 - ___ is produced by seaweeds.
Alginic Acid
413 - Calvin was awarded noble prize in which year?
1961
414 - Most flatworms are?
Endoparasites
415 - Which tissue is responsible for the passage of water in plants?
Xylem
416 - Taking in oxygen and giving out CO2 is called?
Gaseous exchange
417 - Which helps in maintaining the shape of the eye?
Vitreous Humor
418 - During meiosis the chromatids become the daughter chromosomes during?
Anaphase II
419 - An alpha helix is the example of __ structure of protein.
Secondary
420 - Certain genetic facts such as Alkaptonuria and Albinism is described by?
Recessive Genes
421 - In sea anemone the symmetry is?
Absent
422 - During Kreb's cycle direct ATP production per glucose molecule is?
2
423 - Total number of bio elements is?
16
424 - In vertebrates the yolk in eggs is synthesized in:
Liver
425 - Most abundant protein on earth is?
Rubisco
426 - One of the following have no upper incisors?
Deer
427 - Sexual reproduction in plants was discovered by?
Camerarius
428 - All of the following are related to glucose and galactose except?
Not isomers of each other
429 - The smallest of human cells are?
RBCs
430 - An amniotic egg is present in?
Sea Turtle
431 - Phylogenetic relationship can be represented by?
Dendrogram
432 - Which of the following is the part of prosthetic group?
Iron
433 - Which of the following term include all other in the list?
Carbohydrates
434 - Interferon is made by?
All of the above
435 - TRH follows __ type of cell to cell signalling.
Paracrine
436 - The egg type in Amphioxus is:
Microlecithal
437 - ___ leads to canal system in sponges.
Inner walls folding
438 - ___ also serves as a connection between cerebellum and spinal cord.
Pons
439 - The uniqueness of adult Echinoderm is due to?
Pentaradial symmetry, Hydrocoel
440 - Which enzyme converts 2-phosphoglyceric acid into phosphoenol pyruvic acid?
Enolase
441 - The loss of water from the surface of plants through evaporation is called?
Transpiration
442 - NADPH2 is produced by?
Photosystem 1
443 - How many ATP molecules are used in the preparatory phase of glycolysis?
2
444 - A ground plan showing relation of flora leaves to each other and to mother axis is called?
Floral diagram
445 - The RNA molecules occur as?
Single Strand
446 - All the information for the structure and function of a cell is stored in?
DNA
447 - Morphologically similar or identical populations which are reproductively isolated are?
Sibling species
448 - Enzymes used for the removal of protein stains from clothes is called?
Protease
449 - Nails, hoofs and horns are the examples of?
Keratinized Derivatives
450 - In animals the enzyme unique to gluconeogenesis is:
Fructose-1,6-bisphosphatase
451 - Which fishes have well developed stomach and intestine than that of herbivores of comparable size?
Grazing
452 - Which of the following does not show quaternary structure?
Fibrin
453 - Algae rich in proteins?
Spirulina
454 - Which group of fish is close relative to tetrapods?
Lobe-finned fishes
455 - Blender experiment to prove DNA as genetic material was performed by?
Hershey and Chase
456 - Human posses __ kidneys.
Metanephros
457 - ___ is not an example of bulbs.
Water lily
458 - This is small locally located subpopulation of organisms subjected to selection?
Deme
459 - ___ is primary consumer.
Grosshopper
460 - Nucleolar organizer is separated from rest of chromosomes is?
Secondary constriction
461 - Activity of one gene is suppressed by the activity of non-allelic gene, it is known as?
Epistasis
462 - Uric acid is the chief nitrogenous waste of?
Reptiles and Birds
463 - Fruits are not found in Gymnosperms due to presence of?
Ovary
464 - Coenzymes form?
Vitamins
465 - Pulse rate directly measures?
Heart rate
466 - Glycolysis takes place in?
Cytoplasm
467 - The term True Breeding means?
Homozygous
468 - Covering of lungs is called?
Pleural membrane
469 - Which of the following enzyme play a central role in the control of cell cycle?
cdc 2 Kinase
470 - The main conducting part inside the capsule of Funaria is?
Apophysis
471 - Agar-Agar is obtained from?
Gelidium
472 - Formation of Gametes is called?
Gametogenesis
473 - Which part of the cell makes proteins?
Ribosomes
474 - Biologists use discussion and reasoning procedure to formulate a?
Hypothesis
475 - Dengue virus belongs to?
Flaviviridae
476 - FADH2 is formed during?
Krebs cycle
477 - Methyl group is attached to carbon number 5 of?
Thymine
478 - Ctenoid scales are present on the bodies of?
Osteichthyes
479 - At cytokinesis in plants a structure is formed from which originate from?
Golgi complex
480 - Charles Darwin proposed the theory of?
Natural selection
481 - Which type of cells has no nucleus?
Red blood cells
482 - Rubisco content of chloroplast is?
20%
483 - In which of the following sets of animals all the four give birth to young ones?
Kangaroo, Hedgehog, Dolphin, Loris
484 - The heart of class Pisces is?
Single circuit
485 - The breakdown to glucose molecules in two molecules of pyruvate results in the production of molecules?
2
486 - Hydra exhibits regeneration of the type?
Morphallaxis
487 - Which amino acid has single codon?
Tryptophan
488 - Which of the following sub cellular component is likely to be absent in plant roots?
Chloroplast
489 - Motion caused by earthquakes travels outward from the focus in the form of?
Seismic waves
490 - Lungs are present in?
Dipnoi
491 - In brassica the placentation is?
Parietal
492 - Eukaryotes evolved how many years ago?
1.5
493 - Which one of these is an arachnid?
Scorpion
494 - Most of the animals which are present in Paleozoic era are?
Fishes
495 - Folic acid deficiency is believed to be a major cause of what class of malformation?
Neural tube defects
496 - In arthropods heart is present on?
Dorsal side
497 - The average human heart beat per minute is?
70 times
498 - An activated enzyme consisting of polypeptide chain and cofactor is known as:
Holoenzyme
499 - Extrinsic information molecules are?
Hormones
500 - Where do the casparian bands occur?
Endodermis
501 - There are two ring forms of glucose (alpha and beta) because?
When the ring closes, the hydroxyl group at the point of closure can be trapped in either one of the two possible positions.
502 - Lichens are very good bio indicators of?
Air Quality
503 - Aquatic animals with large surface area breath through?
Gills
504 - The whole series of light reactions is called?
Z-Scheme
505 - Example of micromolecule is?
Glucose
506 - Recent studies have shown that antigen A and B are not proteins, they are rather special type of carbohydrates, Antigen A is?
Galactosamine
507 - "Cod" is a variety of?
Fish
508 - Plants synthesis protein from?
Amino Acids
509 - Change in gene frequency by chance is called?
Genetic Drift
510 - Ammonia is converted into nitrites by bacteria?
Nitrosomonas
511 - Jelly fish belong to?
Diploblastic
512 - In pigment photosystem II entrapping centre of solar energy is?
P680
513 - Among the following which is the example of social insects?
Honeybee
514 - In chick embryo the depression forms at the anterior end of the primitive streak that marks the beginning of an inward migration of epiblast cell is?
Hensen's node
515 - In microcephaly the individuals are born with small?
Skull
516 - Permanent tissues originate from the tissues?
Meristematic
517 - Which of the following tropical level represents carnivores?
Secondary consumers
518 - Pentaradial symmetry is present in?
Star Fish
519 - Final electron acceptor of ETC that functions in oxidative phosphorylation is?
Oxygen
520 - All of the following are primates except the?
Giraffe
521 - If humans and pandas belong to the same class then they must also belong to the same:
Phylum
522 - What do we called the tubes that carry blood towards the heart?
Veins
523 - The functional unit of nature is?
Ecosystem
524 - Which amino acid lost in the cystic fibrosis?
Phyenylalanine
525 - Smooth endoplasmic reticulum is involved in?
Phopholipids biosynthesis and detoxification reaction.
526 - The example of Micro molecule is?
Glucose
527 - Median eye is present in?
Reptiles
528 - What is the major component of cell wall of fungi?
Chitin
529 - Which of the following include all others in the list:
Catalyst
530 - Diploblastic lack which layer?
Mesoderm
531 - ___ secretes glucagon hormone.
Pancrease
532 - The unit of life in which biological evolution actually occurs is usually considered to be:
Population
533 - HIV-1 destroy?
T Cells
534 - The phase of cell cycle in which cell prepares itself for division is called?
Prophase
535 - Threats to the aquatic biodiversity are?
All of the above
536 - Unique feature of cardiac muscle cell?
Intercalated Disc
537 - A part of the digestive system that is not in contact with food is the?
Liver
538 - Protein part of enzyme is?
Apoenzyme
539 - Example of Colonial type organization is?
Volvox
540 - Which of the following is also called animal starch?
Glycogen
541 - Which hormone is not secreted from human placenta?
LH
542 - The following is a steroid hormone?
Aldosterone
543 - What effect on glucose orally?
Absorption
544 - In which of the following stages crossing over occurs?
Pachytene
545 - In one of the following a radar system is present to locate the position of the food?
Bat
546 - How many different combinations of maternal and paternal chromosomes can be packed in gamete by an organism with diploid number of 08 (2n=08)?
16
547 - Ventricular systole lasts about in?
0.3 Second
548 - Insects belongs to which class?
Hexapoda
549 - The non protein part of an enzyme is known as?
Prosthetic group
550 - Gastric digestion takes place efficiently in __ medium.
Acidic
551 - who presented the idea that all animals and plants are somehow related?
Aristotle
552 - Following are the function served by Echinoderms water vascular system except one. Select this exception.
Storage of gametes
553 - Which of the following is common to both avian and mammalian development?
Primitive streak
554 - In sponges the food enters the spongocoel cavity through?
Ostia
555 - Which of the following is a mollusc?
Cuttle fish
556 - Microscopic study of tissues is called?
Histology
557 - For globular protein which structure is important?
Tertiary
558 - Name the bond joining glycerol and fatty acid in the formation of lipids?
Ester
559 - Toxic substances can influence organisms in what ways at the cellular level?
All of the above
560 - What does the blood in the renal artery contain in comparison with the blood in renal vein?
Less Carbon Dioxide and More Urea
561 - Largest gland of body is?
Liver
562 - Males are haploid in?
Honey Bees
563 - Cap cells are found in?
Oedogonium
564 - An aprupt change from Anaerobic to aerobic process gives rise to?
Pasteur effect
565 - All algae except one of the following have forms with Nagellated motile cells in at least one stage of their life cycle?
Rhodophyta
566 - Specific function of liver is?
Glycogenesis and Gluconeogenesis
567 - Transgenic stem cells are grown in?
Vitro
568 - The endoderm gives rise to?
Lining of digestive tract
569 - ___ gland is pea sized.
Pituitary
570 - Similarity between birds wings and insects wings is?
Analogy
571 - The idea of sterile surgery for the first time was promoted by?
Joseph Lister
572 - ___ is a depression near the center of the concave side of kidney.
Hilus
573 - Which of the following group is entirely extinct?
Placoderms
574 - The most basic step of Biological method is?
Experimentation
575 - Neural gland is main excretory organ found in:
Herdmania
576 - What is the largest part of human brain?
Cerebrum
577 - An endemic specie is?
Which is found uniquely in one place
578 - Mitochondria are found?
In all eukaryotic cells.
579 - Which components are present in prokaryotic cell?
Cytoplasm, DNA, Ribosomes
580 - These all extinct forms, from Mesozoie to Cretaceous with exception of:
Chrysemis
581 - Iron deficiency causes?
Anaemia
582 - A land snail, a calm and an octopus all share:
Mantle
583 - Opossum, kangroo and Tasmanian Wolf are the examples of?
Metatheria
584 - Main difference between chordates and hemichordates is?
Notochord
585 - Larvae of the sponges are called?
Amphiblasula
586 - It is potential source of energy for cellular activities?
C – H Bond
587 - Name the cell line of human embryonic lung?
MRC-5
588 - Which subdivision has been characterized by the absence of Zoospore as well as perfect state spores?
Zygomycotina
589 - Region of soil surrounding the root is?
Rhizosphere
590 - Sister chromatids move towards opposite poles in which phase of mitosis?
Anaphase
591 - Nucleolus is mainly formed by?
Chromosome
592 - Glottis opens in the floor of?
Pharyngeal cavity
593 - Function of reverse transcriptase?
Formation of DNA from viral RNA
594 - A group of related families of organisms is called?
Genus
595 - Birds vertebrae are?
Heterocoelous
596 - The most common respiratory pigment in molluscs and crustaceans is?
Hemocyanin
597 - The primer required to initiate synthesis of a new DNA strands consists of:
RNA
598 - When tumor remains in their original location where they are formed are called?
Benign tumors
599 - A fungus completing its life cycle on single host is known as?
Autoecious
600 - Structure of cell that is not organelle is?
Cytoplasm
601 - The most abundant and best known green house gas is?
CO2
602 - What is the common between parrot, platypus and kangaroo?
Homeotherm
603 - Which of the following is the safest anticoagulant for fetus?
Heparin
604 - Important secondary structure of protein is?
Both A & B
605 - In cells which is responsible for energy production?
Mitochondria
606 - With this phenomenon average temperature of the earth might be less than -71 degree centigrade?
Greenhouse effect
607 - Who explained the earth history by catastrophism?
Cuvier
608 - The larva form of liver fluke has cilia?
Miracidium
609 - Genetic information in a DNA molecule is coded in the:
Sequences of nucleotides
610 - __ step of action potential is energy dependent.
Refractory period
611 - Which one is constituent of coenzyme?
Vitamin B2
612 - The smallest unit of classification is?
Species
613 - Inactive enzyme precursor such as pepsinogen for pepsin is called?
Zymogen
614 - Which enzyme catalyzes the unwinding the DNA double helix?
Helicase
615 - In a population that is Hardy Weinberg equilibrium, 15% of the individuals show the recessive trait. What is the frequency of the dominant allele in a population?
0.6
616 - The portal vessels carries blood from hypothalamus directly to:
Anterior Pituitary
617 - With respect to the outside the inside of the neuron is?
More negatively charged
618 - Galapagos finches are a good example of?
Adaptive radiation
619 - The death of heart tissues is called?
Myocardial Infarction
620 - __ in asthenosphere is the major factor behind the environment of tectonic plates.
Heat convection
621 - Of the following disease the one caused by a worm is?
Treichinosis
622 - The greater amount of DNA in a cell of an individual shows that it is:
Highly revolved organism
623 - The phenomenon of fertilization was first perceived by:
Hertwig
624 - The amniotes egg first evolved in:
Reptiles
625 - What does a protein lose when it denatures?
Its 3-D Shape
626 - Alimentary canal is usually longer in?
Herbivores
627 - Enzyme which is not proteinaceous in nature is?
Ribozyme
628 - In the membranous skeleton which sheath surrounds the central nervous system?
Perineurium
629 - Al Qanun Fil Tib is the famous book of?
Bu Ali Sina
630 - In which year Oscar Hertwig discovered Meiosis?
1876
631 - ___ is an enzyme that forms covalent bonds between restriction fragments.
DNA Ligase
632 - Similarity between Giraffe, rabbit, camel, bat and whale is that all of them have?
Seven Cervical Vertebrate
633 - Many bacteria live in Colon and they produce?
Vitamin K
634 - Basic idea of organic evolution is?
Descent with modification
635 - Which of the following is primary or transitional meristem?
Apical Meristem
636 - which of the following is supported by a great deal of evidence?
Theory
637 - HIV comprises the immune system mainly by infecting:
Helper T Cells
638 - Okazaki fragments are studied during?
DNA Replication
639 - Rich source of Vitamin B is?
Yeast Extract
640 - Which of the following respiratory system is not closely associated with blood supply?
Tracheal System
641 - Al-Hayawan is the famous book of?
Jabir Bin Hayan
642 - During protein synthesis at the ribosomes __ pairs with __.
Coden, Anticoden
643 - Which of the following are being used as bio Pesticides?
Bacteria
644 - Western Blotting is a technique used for the determination of?
Proteins
645 - Which true prokaryotes is photosynthetic?
Cyanobacteria Nostoc
646 - Continental drift theory proposed that all continets were a single supercontinent in the past called as?
Pangaea
647 - Silk is produced by?
Bombyx and Araneae spiders
648 - Cataract microcephaly deformities and heart defects are common in infants if mothers are exposed to which teratogenic agents during first trimester of pregnancy?
Rubella
649 - The nervous tissues have the ability to ___ ?
Transmit the nerve impulses
650 - The outermost layer of skin is known as?
Epidermis
651 - Which of the following is a dual organism?
Lichen
652 - The __ coefficient is the probability that two alleles in an individual are identically descent from a common ancestor.
Lod Score
653 - Damage to WOF causes death of cell?
Cell Membrane
654 - Tropical plant like sugarcane show high efficiency of CO2 fixation due to?
Hatch-Slack Cycle
655 - Which organ is sometimes removed from the body and replaced with a new one?
Heart
656 - Main substance reabsorbed in the descending limb of the loop of Henle is?
Water
657 - Insulin?
Is secreted as a pro-insulin
658 - In marsupials gestation period varies between?
8 to 40 days
659 - Major sister phyla of arthropod is?
Annelida
660 - __ of the codon is the redundancy of the genetic code, exhibited as the multiplicity of three base pairs codon combinations that specify an amino acid.
Degeneracy
661 - ___ is used in soap making.
Glycerol
662 - Arms are absent in class?
Echinoidea
663 - Mature larva of housefly is?
Maggot
664 - Who received noble prize for working of CO2 fixation firstly?
Huber and Michel
665 - Fate of blastopore is foretold in?
Arthropoda
666 - Psilotum is commonly known as?
Wisk Fern
667 - The least porous soil among the following is?
Clayey soil
668 - What is the normal resting potential of the neuron?
-70 mV
669 - In which phase of cell division does the duplication of chromosomes occur?
S Phase
670 - Two amino acids of the standard 20 contain sulphur atoms they are?
Methionine and Cysteine
671 - The reserve food material Floridean starch is present in:
Red Algae
672 - Flowering plants first appear during which period?
Cretaceous
673 - ___ prevents blood clotting.
Basophils
674 - Ptyalin is an amylase which digests starch and glycogen?
Maltose
675 - Terminal part of axon ends in?
Synaptic cleft
676 - An enzyme __ the activation energy of the reaction.
Lowers
677 - The phenomena of genetic drift is most likely to occur in populations that:
Are small and in bred
678 - Mulberry silkworm is:
Bombyx Mori
679 - In recombinant DNA method the term vector refers to:
A plasmid
680 - The environment where evaporation exceeds precipitation called?
Desert
681 - Pollination by birds is called?
Ornithophily
682 - Central dogma of molecular biology is?
DNA-RNA-Proteins
683 - Which sub type is most virulent?
HIV-1
684 - When cell wall is removed from the plant cell it is called?
Protoplast
685 - Study of fossils is called?
Palaeontology
686 - Male breast cancer is strongly linked with mutations in __ .
BRAC2
687 - Vascular cryptogams are?
Pteridophyta
688 - Cross of F1 offsprings with any of the parents is known as?
Back cross
689 - If lysosome measures 0.4 um what is the diameter in nm?
400 nm
690 - Copper is associated with which of the following enzyme?
Both A & B
691 - Bacteria is assigned to Kingdom of?
Monera
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