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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
mutations which soes not cause any change in the protein is :A. silent mutationB. mis-sence mutationC. frameshift mutationsD. nonesence mutation |
| Answer» Correct Answer - A | |
| 252. |
When two mutations located in the same funcitnal unit or in different functional units ,then it is confirmed by :A. test crossB. back crossC. resiprocal crossD. complemtation test |
| Answer» Correct Answer - D | |
| 253. |
Occurance of cell containing mulples of 2n genomes in diploid organisms is known asA. aneuploidyB. alloploidyC. amphiploidyD. endoplyyploidy |
| Answer» Correct Answer - D | |
| 254. |
Durning preparation of gene maop, recombinatin frequencies are additve over short distacnes sbut not exactly over long distances due toA. Synaptinemal complexB. Inhibitor genesC. Multiple cross oversD. Mutations |
| Answer» Correct Answer - C | |
| 255. |
The formation of multivalents at meiosis in diploid organism is dua toA. deletionB. inversionC. monosomyD. recipriocal translocation |
| Answer» Correct Answer - D | |
| 256. |
Which corp varietuy is not due to induced mutations?A. Reimei of RiceB. Prabhat of ArharC. Sharbati sonora of wheatD. Aruna of castor |
| Answer» Correct Answer - B | |
| 257. |
What is C value paradox?A. Diploid DNA constantB. Haploid DNA constantC. Constant C value not all speeciesD. |
| Answer» Correct Answer - C | |
| 258. |
Chimera is produced due toA. Somatic mutationsB. reverse mutatiosC. lethal mutationsD. Pleiotropic mutations |
| Answer» Correct Answer - A | |
| 259. |
Chimera is produced as a result ofA. Lethal mutation sB. Reverse mutationsC. Somatic mutationsD. Pleiotropic mutations |
| Answer» Correct Answer - C | |
| 260. |
Gynandromorphism in certain flies is the result of :A. Non- disjunction of X-chromosomeB. Repeated and sudden changes in both X and Y-chromosomesC. Misdivision of chromosomes whereby one of the X-chromosome gets lostD. Failure of X and Y-chromosome to separate during gamete formation at the first zygotic division |
| Answer» Correct Answer - A | |
| 261. |
Individuals homozygous for ed genes were crosserd with wild type++. The F1 dihybrid, thus produced was test crossed. It produced progeny in the following ratio+ 900,+d115, cd 880, + 105. What is the distance between c and d genes?A. 47 unitsB. 88 unitsC. 11 unitsD. 5.75 units |
| Answer» Correct Answer - C | |
| 262. |
Individual homozygous for cd genes were crossed with wild type(++). The F1 hybrids thus produced was test crossed and progenies produced in following ratio ++-450, cd-440, + d -58,+c -54 Calculate the distance between c and d genes.A. 5.75 unitsB. 11.2 unitsC. 45 unitsD. 44units |
| Answer» Correct Answer - B | |
| 263. |
The equivalent of a strutural gene is :A. OperonB. ReconC. MutonD. Cistron |
| Answer» Correct Answer - D | |
| 264. |
Balbiani rins are the centres for :A. RNA synthesisB. DNA synthesisC. Both DNA and RNA synthesisD. None of the above |
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Answer» Correct Answer - A Balbinirings have a high content of RNA and show a rapid uptake and turn of RNA precursores. |
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| 265. |
Balbiani rings are the structural features of :A. AllosomesB. AutosomesC. Polytene chromosomesD. Lampbush chromosomes |
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Answer» Correct Answer - C Balbiani rings are large RNA puffs reprted in the salivery gland chromosomes of chironomus durinf larval development |
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| 266. |
Balbiani rings are sites ofA. Lipid synthesisB. nuclotide synthesisC. polysaccharide synthesisD. RNA and protein sythesis |
| Answer» Correct Answer - D | |
| 267. |
Gene for colour blindness in man is located onA. X-chromosomes onlyB. Y-chromosome only C. Either X or Y chromosomeD. Both X and Y chromosomes |
| Answer» Correct Answer - A | |
| 268. |
The genes for the eye colour and size of the wing in Drosophila are located on the same chromosome.They can be separated Recombinants develop due toA. Non disjunctionB. Crossing overC. HybridizationD. Not be separted at any stage |
| Answer» Correct Answer - B | |
| 269. |
Gene for colour blindness in man is located onA. X-chromosomes onlyB. Y-chromosome onlyC. Either X or Y chromosomeD. Both X and Y chromosomes |
| Answer» Correct Answer - A | |
| 270. |
A colour blind daughter is born in case ofA. Colour blind mother normal fatherB. Carrier mother colour blind fatherC. Normal mother colour blind fatherD. Carrier mother normal father |
| Answer» Correct Answer - B | |
| 271. |
Which of the following disesase is sex linked?A. Colour blindnessB. MalignancyC. HepatitisD. Leukemia |
| Answer» Correct Answer - A | |
| 272. |
A normal woman is married to a colour blind man.The children are expected to beA. All normalB. 50% sons are colour blindC. All doughters are normal but carrier whereaas all sons are normal phenothypuically as well as genotypicallyD. 50% daughters are colour blind |
| Answer» Correct Answer - C | |
| 273. |
A colour blin daughter may be born if theA. Father is normal and mother is colour blindB. Father is colour blind and mother is normalC. Father is normal and mother is a carrierD. Father is colour blind and mother is a carrier |
| Answer» Correct Answer - D | |
| 274. |
A somatic cell in human male containsA. No gene on sex chromosomesB. Only one sex-linked gene for each characaterC. Two genes for every sex-linked characterD. Genes only on sex chromosomes |
| Answer» Correct Answer - B | |
| 275. |
the largest number of chromosomes are found in :A. LemnaB. NeurosporeC. AdiantumD. ophioglssum |
| Answer» Correct Answer - D | |
| 276. |
there are 44 chromosomes in the somatic cells of rabbit How many chromosomes does a rabbit receive from its mother ?A. 22B. 44C. 11D. 42 |
| Answer» Correct Answer - A | |
| 277. |
Dipiod number of chromosome in gorilla gorilla may cells .A. 46B. 50C. 48D. 64 |
| Answer» Correct Answer - C | |
| 278. |
which of the following is having lowest number of chromosomes ?A. silkwormB. TapewormC. EarthwormD. Ascaris megaloephala |
| Answer» Correct Answer - D | |
| 279. |
Humans normally have 46 chromosomes inkidney cells . . How many autosomes would be expecteed in an bain cell ?A. 46B. 44C. 23D. 47 |
| Answer» Correct Answer - B | |
| 280. |
Autosomes present in human sperm areA. 46B. 44C. 23D. 22 |
| Answer» Correct Answer - D | |
| 281. |
Autosomes areA. Chromosomes having sex-linked charactersB. Chromosomes having somatic charactersC. Chromosomes having bothe sex-linked and somatic characters.D. None of the above |
| Answer» Correct Answer - B | |
| 282. |
Autosomes in humans are :A. 11 pairsB. 23 pairsC. 22 pairsD. 43 pairs |
| Answer» Correct Answer - C | |
| 283. |
the digrammatic repesention of the chromosomes of an individual os called :A. dipoidyB. idiogramC. karytypeD. phenotype |
| Answer» Correct Answer - B | |
| 284. |
If the ratio between X- chromosomes and compete set of autosome is 0.5. Then, the individual will beA. FemaleB. Super femaleC. MaleD. Super male |
| Answer» Correct Answer - C | |
| 285. |
Haemophilia isA. Autosomal diseaseB. Bacterial diseaseC. Viral diseaseD. Sex linked disease. |
| Answer» Correct Answer - D | |
| 286. |
Addition of individual chromosomes is mutation calledA. PolyploidyB. Structural mutationC. PolysomyD. Point mutation. |
| Answer» Correct Answer - C | |
| 287. |
Polydactyly ihn man is due toA. Autosomal recessive allelB. Autosomal dominant alleleC. Sex linked recessive alleleD. Sex linked dominant allele. |
| Answer» Correct Answer - B | |
| 288. |
In humans , Philadelhia chromosomee is formed by reciprocal translocation between chromosomesA. 9 and 21B. 9 and 22C. 9 and 11D. 20 and 10 |
| Answer» Correct Answer - B | |
| 289. |
Chromosomal aberrations ae commonly observed inA. brian cellsB. NeuronsC. Cancer cellsD. None of these |
| Answer» Correct Answer - C | |
| 290. |
Hamophilia is due to mutation inA. X and Y chromosomesB. Y-chromosomeC. X-chromosome of femaleD. Autosomal chromosome |
| Answer» Correct Answer - C | |
| 291. |
DNA is associated with basic proteinA. albuminB. nonhistoneC. histoneD. both a and c |
| Answer» Correct Answer - C | |
| 292. |
The eukaryotic Chromosomes are made up ofA. DNAB. RNAC. DNA + lipidsD. DNA + protein |
| Answer» Correct Answer - D | |
| 293. |
Where are barr bodies found ?A. OvaB. spermsC. somatic cells of manD. somatic cells of woman |
| Answer» Correct Answer - D | |
| 294. |
Polyloid derived from two different species is called :A. AutopolyploidB. TriploidC. allopolyploidD. Monoploid |
| Answer» Correct Answer - C | |
| 295. |
The chemical nature of chromatin is :A. nucleic acidsB. nucleic acids and histone proteinsC. nucleic acids and non - histone proteinsD. nucleic acids ,histone and non - histone proteins |
| Answer» Correct Answer - D | |
| 296. |
Number o flinkage in a p[olynuceleotide would beA. Same as number of nucleotidesB. Twice the number of nucleotidesC. One less than the number of nucleotidesD. One |
| Answer» Correct Answer - D | |
| 297. |
In a chromosomes the protein content isA. NilB. TraceC. Half of DNAD. Same as DNA |
| Answer» Correct Answer - D | |
| 298. |
Minor change at a gene level are descibed as :A. point mutationsB. reverse mutationsC. forward mutationsD. chromosomal mutations |
| Answer» Correct Answer - A | |
| 299. |
Male is haloid inA. LizardB. CockroachC. Honey BeeD. Bats |
| Answer» Correct Answer - C | |
| 300. |
Sickle -cell anaemia is:A. Sex cellsB. Sex chromosomesC. AutosomesD. Bone cells |
| Answer» Correct Answer - C | |