Home Genetics Genetics Most Important MCQs: Set#. 7

Genetics Most Important MCQs: Set#. 7

1201 - The Valine replaces glutamic acid in

HbS

1202 - The value of lod score 2.0 or less for linkage in human, indicates___________

Non linkage

1203 - The value of lod score 3.0 or higher for linkage in human, strongly indicates___________

Linkage

1204 - The value of lod score between 2.0 and 3.0 for linkage in human, indicates___________

Inconlusive

1205 - The Variable number tandem repeats(VNTRs) are found ________________genes

Both a and b

1206 - The Variable number tandem repeats(VNTRs) are found within and between genes are also called

Minisatellite

1207 - The vast majority of organisms have _______amino acids in their protein structures

20

1208 - The virus SV40 contains 5200 base pairs and 10.4 bases in each turn, what will be the linking number

500

1209 - The viruses that can only lyse the bacterial cell

Virulent phage

1210 - The viruses that can either lyse the cell or can live peacfully with bacteria

Temperate phage

1211 - The visual demonstration of the transcription process based on classic electron microscope studies was represented by

Oscar Miller

1212 - The white eye color in Drosophila is under the control of

Multiple allele

1213 - The white eye color in Drosophila is under the control of over__________alleles

100

1214 - The white eye color in Drosophila was discovered by

Morgan

1215 - The white eye mutant Drosophila synthesizes____________eye pigments

Normal

1216 - The wild type bacteria which can nsynthesize all required organic compounds is called

Prototroph

1217 - The wild type phages can infect and lyse

All of these

1218 - The wobble hypothesis was proposed by

Crick

1219 - The X-degenerative region of MSY of y chromosome contains

Pseudogenes

1220 - The X-transposed region of MSY is__________percent identical to region Xp21 of modern human X chromosome

99

1221 - The___________inheritance does/do not follow the Mendelian inheritance

Both a and b

1222 - The__________subunit of the core enzyme is directly involved in the proofreading steps

Epsilon

1223 - The__________trait will reappear in F2 generation

Green seed

1224 - The________subunit of RNA polymerase recognizes the promoters of most genes in the bacterial cell

σ

1225 - There are ________different types of amino acids commonly found in proteins

20

1226 - There are ______levels of protein structure

4

1227 - There are about ________protein coding sequences in E.coli.

4000

1228 - There are about DNA molecules of polymeraseI/cell of bacteria

400

1229 - There are about DNA molecules of polymeraseII/cell of bacteria

None of these

1230 - There are about DNA molecules of polymeraseIII/cell of bacteria

15

1231 - There are at least______check points in cell cycle to proceed

3

1232 - There are over_________genes, which are involved in the development of the ability to discern sound

50

1233 - There is only single origin of replication in E.col was demanstrated by

John Cairns

1234 - There is/are ___________origin of replication in E.col

One

1235 - There is/are ______type/types of RNA polymerase/polymerases in bacteria

1

1236 - There is/are ______type/types of RNA polymerase/polymerases in eukaryotes

3

1237 - There were__________theories of DNA replication

3

1238 - Three consective ribonucleotides, the anticodons are locared on

tRNA

1239 - Three consective ribonucleotides, the codons are locared on

mRNA

1240 - Three person in vitro fertilization techniques are used to treat__________disorder

mtDNA

1241 - To know the relative roles of genes and the environment, researcher have resorted various indirect methods including_______studies

Twin

1242 - To study__________crossover, three genes pair must be investigated

Double

1243 - Topoisomerses have _________types

2

1244 - Total genetic makeup of an individual

Genome

1245 - Transcription is synthesis of ____________RNA/RNAs from DNA

All of these

1246 - Transformation occur in

All of these

1247 - Transport Oxygen

Hemoglobin

1248 - Transport Oxygen

Both a and b

1249 - Triple helix structure of DNA was incorrectly proposed by

Pauling

1250 - Trisomic animals and plants are _________than monosomic

More viable

1251 - Triticale is hybrid of wheat and

Rye

1252 - tRNA are composed of only _________nucleotides

75-90

1253 - tRNA are composed of only _________nucleotides in bacteria

75-90

1254 - tRNA are composed of only _________nucleotides in eukaryotes

75-90

1255 - True breeding generation

rr

1256 - Ttmalexttfemale and ttmalexTTfemale is a

Reciprocal cross

1257 - Two identical DNA molecules that differ in linking number are said to be

Topoisomers

1258 - Two mice genes Sox9 and Eif2s3y could be substitude for ____________chromosome

Y

1259 - UAA, normally specify termination but in mitochondria it specify_________

Glutamine

1260 - UAG, normally specify termination but in mitochondria it specify_________

Glutamine

1261 - UGA, normally specify termination but in mitochondria it specify_________

Tryptophan

1262 - Under developed breast but normal intelligence

Turner syndrome

1263 - Unknown dominant phenotype is crossed with homozgous recessive individuals to the genotypes of it

Test cross

1264 - Untill 1944, observations favoured_________as genetic material

Protein

1265 - U-tube apparatus for the growth of bacteria was designed by

Davis

1266 - UV light is most mutagenic at the wavelength of

260 nm

1267 - Vertibrate liver cell nuclei, including human being are

Endopolyploidy

1268 - Vertibrate liver cell nuclei, including human being contain

All of these

1269 - Vertical gene tranfer is applied between the member of _____________ species

Same

1270 - Viral gene storage is called

Head full capacity

1271 - Vital heat word for semen was used by

Aristotle

1272 - Watson and Crick model of DNA was proposed in

1953

1273 - Watson and crick proposed a structural model for

DNA

1274 - When a portion of chromosome is lost

Both a and b

1275 - When a portion of chromosome is present more than one

Duplication

1276 - When a single gene has multiple phenotypic effect is known as

Pleiotropy

1277 - When bacterial reproduction rate and death rate become equal

Stationary phase

1278 - When both alleles are different in a gene is called

Heterozygous

1279 - When both alleles are same in a gene is called

Homozygos

1280 - When Dd x dd in test cross, what will be the ratio Tall to dwarf in F1 progeny

1 to2

1281 - When foreign DNA is absorbed by bacteria is called

Transformation

1282 - When many ribosomes attach with single mRNA

Both a and b

1283 - When multiple copies of genes codes for rRNA is called gene

Redundancy

1284 - When the expression of one gene masks or modified the effect of other gene

Both a and b

1285 - When the loci of two genes are far apart, maximum reconbinant percentage will be

50

1286 - When the size of polypeptide reaches_________amino acids, it begins to emerge from the base of large subunit during translation

30

1287 - When there is no detectable change in gene product is called___________mutation

Neutral

1288 - When translocation takes place between nonhomologous chromosomes near the cetromere

Robertsonian

1289 - When two alleles of a single gene are responsible for producing two distinct gene products is called

Codominance

1290 - When two different species contribute equally in production of alloploid is called

Amphidiploid

1291 - When two different traits are consider in single cross

Dihybrid

1292 - When two linked genes are 50 mu apart, the chances of crossing over between them wil be ___________percent

100

1293 - Which character is dominant in pea plant

Round seed

1294 - Which character is Recessive in pea plant

Green seed

1295 - Which chromosomes do not pair during meiosis

XY

1296 - Which of the following cell/cells has/have telomerases

All of these

1297 - Which of the following cells do not express telomerases

Heart

1298 - Which of the following individual/individuals may has/have Linear chromosomes

Both a and b

1299 - Which of the following individual/individuals may has/have Linear chromosomes

All of these

1300 - Which of the following is part of RNA editing

All of these

1301 - Which of the following is irrelevant to introns

histones of immune system

1302 - Which of the following is member of large group of DNA topoisomerases

DNA gyrase

1303 - Which of the following is not a site of ribosome

Initiation site

1304 - Which of the following is reside on X chromosome

Xic

1305 - Which of the following is transposable sequence/sequences

All of these

1306 - Which of the following Releasing factor is GTPase

RF3

1307 - Which of the following virus is the most valuable for transduction

Lambda phage

1308 - Which one is crucial characteristic/s of DNA

All of these

1309 - Which one is heterozygous for the height of pea plant

Dd

1310 - Which one is homozygous for the height of pea plant

Both a and b

1311 - Which one is irrelevant to Y chromosome

Xic

1312 - Which one is not found in DNA

Uracil

1313 - Which one is not found in DNA

Ribose sugar

1314 - Which one is not found in RNA

Thymine

1315 - Which one is not a Pyrimidine

Adenine

1316 - Which one is not characteristic/s of DNA

Single stranded

1317 - Which one is not found in bacterial translation

eIFs

1318 - Which one is not found in eukaryotic translation

Shine-Dalgarno sequence

1319 - Which one is not funcrion of proteins

Hereditary material

1320 - Which one is not relevant to tertiary structure of proteins

No. of amino acids

1321 - Which one of the followin disorder is not included in maternal inheritance

Tay-sach's disease

1322 - Which one of the following amino acid is expection to the rule of 20 amino acids

Selenocysteine

1323 - Which one of the following amino acid is expection to the rule of 20 amino acids

Pyrrolysine

1324 - Which one of the following amino acid is nonpolar and hydrophobic

Valine

1325 - Which one of the following amino acid is not polar and hydrophilic

Valine

1326 - Which one of the following amino acid is polar and hydrophilic

serine

1327 - Which one of the following amino acid/acids is/are nonpolar and hydrophobic

All of these

1328 - Which one of the following is aneuploidy

All of these

1329 - Which one of the following is euploidy

All of these

1330 - Which one of the following is irrelevant to posttranslational modification of proteins

Hydrogen bonding

1331 - Which one of the following is left handed DNA double helix

Z-DNA

1332 - Which one of the following is monosomy

2n-1

1333 - Which one of the following is not a part of proteins

Glycerol

1334 - Which one of the following is not a sex linked disorder

AIDS

1335 - Which one of the following is relevant to posttranslational modification of proteins

Addition of Prosthetic groups

1336 - Which one of the following is Tetrasomy

2n+2

1337 - Which one of the following is Trisomy

2n+1

1338 - Which trait will appear in F1 generation

Round seed

1339 - Wolffian and Mullerian ducts are found in________human embryo

Both a and b

1340 - Wolffian ducts differentiate into organs of _________reproductive tract

Male

1341 - Wrinkled seeds in peas is due to mutant allele for___________enzyme

Starch branching(SBEI)

1342 - X-body(x chromosome was identified by________in certain insects

Hermann Henking

1343 - X-linked recessive traits are frequent in

Male

1344 - Yeast genomes contain between _________ replication origins

250-400

1345 - Zinc-finger nucleases (ZFNS) are effective tools for the treatment of diseases of

Human

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