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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.
| 451. |
the mechanism that causes a gene to move from one linkage group to another is called :A. Inversion and translocationB. DuplicationC. TranslocationD. Crossing over |
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Answer» Correct Answer - C The distance between two genes on the chromosomes is cteasured by using recombination frequancy. Moragan and simrtevant stated that frequency of recombination between two linked gene is dircetly proportional to the distance between then |
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| 452. |
The mechanism that causes a gne to move from one linkage froup to another isA. TranslocationB. InversionC. Crossing overD. Duplication |
| Answer» Correct Answer - A | |
| 453. |
Shape of chromosomes is determined by position ofA. centrosomeB. CentromereC. TelomereD. Micromere |
| Answer» Correct Answer - B | |
| 454. |
Shape if the chromosome is determined by :A. telomereB. centromereC. CentrosomesD. chromomere |
| Answer» Correct Answer - B | |
| 455. |
A chromosome segment lacking a centromere is referred as :A. acentricB. laggingC. metacentricD. telocntric |
| Answer» Correct Answer - A | |
| 456. |
Nucleosome core is made of :A. `H_(1),H_(2),AH_(2)B and H_(3)`B. `H_(1),H_(2)A,H_(2)B and H_(4)`C. `H_(1),H_(2)A,H_(2)B,H_(3) and H_(4)`D. `H_(2)A,H_(2)B,H_(3)and H_(4)` |
| Answer» Correct Answer - D | |
| 457. |
The chromosome apart from the sex chromoes are clled as :A. AllosomesB. AutosomesC. heterosomesD. lambroush chromosomes |
| Answer» Correct Answer - B | |
| 458. |
the chhromosoes in which centromere is situaated close to one end are :A. MetacentricB. TelocentricC. acrocentricsD. Submetacentric |
| Answer» Correct Answer - C | |
| 459. |
One function of the telomere in a chromosome is to :A. start RNA synthesisB. seal the ends of chromosomesC. help two chromosomes to move toward the polesD. identify the correct member of the homologous pair of chromosome |
| Answer» Correct Answer - B | |
| 460. |
The site in the gene at which the mutations occur with unsually high frequency are:A. ReconsB. HotspotsC. MutonsD. Palindromes |
| Answer» Correct Answer - B | |
| 461. |
In nature, the rate of mutation isA. 1x10-7B. 1x10-9C. 1x10-8D. 1x10-12 |
| Answer» Correct Answer - A | |
| 462. |
Marriage between colour blind man and normal woman shall result inA. Colour blind female progenyB. colour blind male progenyC. normla visioned female progenyD. normal visioned male and female progeny |
| Answer» Correct Answer - D | |
| 463. |
Which is the main category of mutation?A. Genetic mutationB. Zygotic mutationC. Somatic mutationD. None of the above |
| Answer» Correct Answer - A | |
| 464. |
Cross over frequency is proportional toA. Phenotypic recombinant frequencyB. Genotypic recombinant frequencyC. Haploid number of chromosomesD. Diploid number of chromosomes |
| Answer» Correct Answer - A | |
| 465. |
Therory proposed by Bridges isA. Sex reversal by geneB. Hormonal control of sexC. Genic balanceD. Developlment of gynandromorph |
| Answer» Correct Answer - C | |
| 466. |
Limnaea shell coiling is due toA. Maternal inheritanceB. Cytaopl,asmic inheritanceC. Extranuclear inheritanceD. All the above |
| Answer» Correct Answer - D | |
| 467. |
Which of the following occurs more than one and less than five in a chromosome?A. telomereB. chromomereC. CentromereD. None of these |
| Answer» Correct Answer - A | |
| 468. |
One function of the telomere in a chromosome is to :A. Stop transcriptionB. initiate transciptionC. seqarate chromosome during cell divisionD. maintaain the indvidualit of chromosomes |
| Answer» Correct Answer - D | |
| 469. |
A ring of htree chromosomes and six bivalents are oberved in pea plant ,what type of cytogical abnormalityis present in this plant ? It is :A. triploidB. primary trisomicC. secondary trisomicD. inversion homozgote |
| Answer» Correct Answer - B | |
| 470. |
Hereditary variations in plants have been produced by the use ofA. DDTB. AusinsC. X-raysD. Gibberllic acid |
| Answer» Correct Answer - C | |
| 471. |
Hereditary variations in plants have been producedA. DDTB. AuxinsC. X-raysD. gibberellic acid |
| Answer» Correct Answer - C | |
| 472. |
A hrmful condition which is also pitential saviour form a mosquito borne infectious diseaseA. ThalassemiaB. Sicke cell anaemiaC. LeukemiaD. Pernicious anamia |
| Answer» Correct Answer - C | |
| 473. |
Free Martin is due toA. Sex reversal by geneB. Environmental control of sexC. Hormonal control of sexD. Sex determination by chromosome |
| Answer» Correct Answer - C | |
| 474. |
Alteration in chromosomes results inA. Abnormalities or aberrationsB. Recombination or abnormalitiesC. Aberrations or replicationD. Replication or recombination |
| Answer» Correct Answer - A | |
| 475. |
The alteration in chromosomes results due toA. Loss of a segment of DNAB. Gain of a segment of DNAC. Both (a) and (b)D. None of the above |
| Answer» Correct Answer - C | |
| 476. |
Genes located on T chromosome areA. Mutatn genesB. Sex linked genesC. Autosomal genesD. Hoplandric genes |
| Answer» Correct Answer - D | |
| 477. |
All genes located on the same chromosome:-A. Form different groups depending up on their relative distanceB. Form one linkage groupsC. Will not from any linkage groupsD. Form interactive groups that affect the phenotype |
| Answer» Correct Answer - B | |
| 478. |
The males of roundworms haveA. One y-chromosomeB. One chromosome less than femaleC. Two similar sex chromosomesD. Distinct sex chromosomes |
| Answer» Correct Answer - B | |
| 479. |
In bugs, cockroach and roundworms, the male possessA. One chromosome less than the femaleB. Two similar sex-chromosomesC. one chromosome different from restD. a Y-chromosome |
| Answer» Correct Answer - A | |
| 480. |
Number o flinkage in a p[olynuceleotide would beA. Same as number of nucleotidesB. Twice as number of nucleotidesC. One less than the number of nucleotidesD. One |
| Answer» Correct Answer - D | |
| 481. |
Drosophila is used in genetic studies becauseA. Its chromosome complement is simpleB. A single mating produces orver 100 offspringsC. life cycle time is small (10-20 days )D. All of the above |
| Answer» Correct Answer - D | |
| 482. |
If gene grequency between genes a and b 15%, c and d 19%. What will be the sequence of these genes in a chromosome?A. a,b,c,dB. a,c,b,dC. d,b,a,cD. a,d,b,c |
| Answer» Correct Answer - B | |
| 483. |
When alleles exhibit themselves within the same phenotype it isA. PseudoallelesB. Multiple allelesC. IsoallelesD. None of these |
| Answer» Correct Answer - C | |
| 484. |
More men suffer from colour blindess than women becauseA. Women are more resistant to diseasesB. Male sex hormone trestosterone causes the diseaseC. Colour blindness gen occurs on Y- chromosomeD. Men are hemizygous and one defective allele is neough to cause the disease |
| Answer» Correct Answer - D | |
| 485. |
Total number of base pairs found in human genome isA. 3.5 meillionB. 35000C. 35 billionD. 3.1 billion |
| Answer» Correct Answer - D | |
| 486. |
As per latest information human genome hasA. 300000 genesB. 30000 genesC. 3000 genesD. 300 genes |
| Answer» Correct Answer - A | |
| 487. |
ZO-ZZ type of sex determination isA. Opposite of XX-OX typeB. Opposite of XX-XY typeC. Opposite of ZZ-ZW typeD. Gynanromorphs |
| Answer» Correct Answer - A | |
| 488. |
Total heriditray material outside the chromosome is calledA. MuthonB. ReconC. PlasmonD. Plasmagene |
| Answer» Correct Answer - C | |
| 489. |
Which is correctA. Birds have ZZ(female)-ZW (male) sex determinaltionB. Drosophila has XX-XY sex determinationC. Henking discorvered Y-chromosomeD. Grasshoppers show XX-XY sex determination. |
| Answer» Correct Answer - B | |
| 490. |
In miaze, coloured endosperm ltCgt is dominant over colourless (c) and full endosperm (s) is dominant over shrunken (s). When a dihybrid of F1 - generation was test crossed, it produced four phenotypes in the following per centage. Coloured full 48% , coloured shrunken 5% colourless full 7% , colourless shrunken 48%. From this data, what would be the ddistance between the two non-allelic genes?A. 48 unitsB. 12 unitsC. 7 unitsD. 5 untis |
| Answer» Correct Answer - B | |
| 491. |
Pentasomic can be denoted byA. 2n+2 2nB. 2n+3C. 2n+1D. 2n+4 |
| Answer» Correct Answer - B | |
| 492. |
Tautomerisation is seen inA. TranslocationB. InversionC. TransitionD. Duplication |
| Answer» Correct Answer - C | |
| 493. |
Find out the mismatched pariA. Lyonization-Russel and LyonB. Y-chromosomes-Stevens and WilsonC. X-body-HenkingD. Shot gun sequencing -Jeffreys. |
| Answer» Correct Answer - D | |
| 494. |
A mutation in bacteria results in nonformation of mesosomes .the expected results will be :A. only replications of DNA will occurB. Only cell division will occurC. only karyokinesis will occurD. all of the above |
| Answer» Correct Answer - A | |
| 495. |
Cytoplasmic male sterility in maize is the phenotypic manifestation of the interactions betweenA. Cytoplasmic factors and male sterility genesB. Cytoplasmic factors and male fertility nuclear genesC. Chloroplast genes and nuclear genesD. Mitochondrial and chloroplast genes |
| Answer» Correct Answer - B | |
| 496. |
Which clotting factor is absent in haemophilia A?A. VIIB. VIIIC. IXD. X |
| Answer» Correct Answer - B | |
| 497. |
Deficenecy of VIII factor leads toA. Haemophilia AB. Haemophilia BC. Haemophilia CD. Haemophilia D |
| Answer» Correct Answer - A | |
| 498. |
Which one of the following carries extra nuclear genetic material ?A. Golgi apparatusB. RibosomesC. ChromosomeD. Plastid/Mitochondria |
| Answer» Correct Answer - D | |
| 499. |
Is it possible to say when a gene will m mutateA. SometimesB. AlwaysC. NeverD. The gene does not mutate |
| Answer» Correct Answer - C | |
| 500. |
Recombination describesA. Generation of parental gene combinationsB. Generation of non-parental gene combinationsC. Generation of both parental and non-parental gene combinationsD. None of the above |
| Answer» Correct Answer - B | |