InterviewSolution
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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.
| 501. |
Lampbrush chromosomes are seen in which typical stage?A. mitrotic prophaseB. meiotic prophaseC. mitotic meteaphaseD. meiosis metaphase |
| Answer» Correct Answer - B | |
| 502. |
What is true in case of honeybee?A. Male diploid, female haploidB. Male diploid, female dipioidC. Male haploid, female haploidD. Male haploid, female diploid |
| Answer» Correct Answer - D | |
| 503. |
Haploids are used for research becauseA. They contain only one chromosomeB. They contain two sets of chromosomesC. They contain three sets of chromosomesD. They contain only one set of chromosomes |
| Answer» Correct Answer - D | |
| 504. |
Neurospora is commonly called :A. pink moldB. black moldC. orange bread moldD. blue bread mold |
| Answer» Correct Answer - C | |
| 505. |
Neurospora is a :A. parasiteB. facultative parasiteC. alwayssaprophyteD. facltative saprophyte |
| Answer» Correct Answer - C | |
| 506. |
Neurospora is a haplois fungus ,Every mutataion acts as a :A. Lethal characterB. Dominant characterC. recessive characterD. benefical character |
| Answer» Correct Answer - B | |
| 507. |
which of the following is false ?A. The limit of recombination is 50%B. Conidia are the sexual spores of NeursporeC. In Drosophile ,crossingh over occurs only femalesD. A Centi Morgan Is a unit distance equivalent to 1% crossing over |
| Answer» Correct Answer - B | |
| 508. |
At what stage does meiosis take place in Neurospora ?A. During gamete formationB. During conidial developmentC. During trichogyne developmentD. During ascospore development |
| Answer» Correct Answer - D | |
| 509. |
Cause of chromosome laggards in meiosis isA. InversionB. Dicentric chromosomeC. Acentric chromosomeD. Duplication of a gene |
| Answer» Correct Answer - B | |
| 510. |
X-chromosomes or X-body was first observed byA. Mendel (1901)B. Castle (1910)C. Henking(1891)D. Bateson (1906) |
| Answer» Correct Answer - C | |
| 511. |
Pseuodominace may be observed in heterzygotes for the a:A. deletionB. duplicationC. Paracentric inversionD. reciprocal translocation |
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Answer» Correct Answer - A pesudodomince is a phenotypic expression of a chromosomal segment bearing the correspoding dominant allele. |
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| 512. |
Chromoomal imbalance is most frequent during which of the following stages of human develoment ?A. FoetalB. embryonicC. adultD. childhood |
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Answer» Correct Answer - B colchiine is an alkaloid that inhibits spindle and 50% of abortues . |
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| 513. |
Colchicine brings about :A. cell divisionB. polyploidyC. cell elongationD. cell differentiation |
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Answer» Correct Answer - B colchince is an alkaloid that inhibits spindle formation during cell division . |
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| 514. |
Cytosterility in the pollen of maize is due toA. Extrachromosomal inheritanceB. Complementary genesC. Nuclear inheritanceD. Hypostasis |
| Answer» Correct Answer - A | |
| 515. |
Identify the worng statementA. Human males have one sex chromosome much shorter than othersB. In domesticated flow] , sex of progeny depends upon type of sperm tht fetilized the eggC. In Male gGrasshopper, 50of sperms have no sex chromosomeD. |
| Answer» Correct Answer - B | |
| 516. |
Hugo de veries attbuteted evloution to :A. polyhenesB. slow differentiationC. continous variationD. discontinuous variiation |
| Answer» Correct Answer - D | |
| 517. |
if four chromomsome synapse into a cross - shaped configuratio0n during meiotic prophase ,the organism is hetero-zygous for a:A. deletionB. TranslocationC. pericentric inversionD. paracentric inversion |
| Answer» Correct Answer - B | |
| 518. |
What is true in case of Honey Bee?A. Male diploid , female haploidB. Male diploid, female diploidC. Male haploid, female haploidD. Male haploid, female diploid |
| Answer» Correct Answer - D | |
| 519. |
Linked genes separate due toA. Recombination of linked genesB. Mutation in female flyC. Crossing overD. None of the above |
| Answer» Correct Answer - C | |
| 520. |
H,J mular had received the Nobal prize for :A. discovering the linkage of genesB. proving that DNA is the genetic materialC. discovering the induced mutation by X-raysD. This studies on Drosophila for genetic study |
| Answer» Correct Answer - C | |
| 521. |
mutation by radaition was first expermentally demonstrated by :A. H.J mullerB. Hugo de vriesC. james WatsonD. Har govind khorana |
| Answer» Correct Answer - A | |
| 522. |
Identify the one which caues mutaltion :A. colchicneB. cosmic raysC. gamma raysD. crossing over |
| Answer» Correct Answer - C | |
| 523. |
which of the following is a point mutaution ?A. IntersexB. Free -MartinC. GynandromorphD. Sickle -cell anemina |
| Answer» Correct Answer - D | |
| 524. |
Which of the following is generally used for induced mutagenesis in crop plantsA. Alpha particlesB. X-raysC. UV (260nm)D. Gamma rays (from cobalt 60) |
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Answer» Correct Answer - D Gamma rays (from Cobalt 60) are generally used for inducing mutations in crop plants. |
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| 525. |
Which of the following is generally used for induced mutagenesis in crop plantsA. X-raysB. UV (260nm)C. Alpha particlesD. Gamma rays (from`" Cobalt" ^(60)`) |
| Answer» Correct Answer - D | |
| 526. |
When a cluster of genes shows linkage behaviour theyA. Do not show inderpendent assortmentB. Induce cell divisionC. do not show a chromosome mapD. Show recombination during meiosis |
| Answer» Correct Answer - A | |
| 527. |
A fruitfly exhibiting both male and female triaits isA. HeterozygousB. GynandromorphC. HemizygousD. Gynanader |
| Answer» Correct Answer - B | |
| 528. |
A ring of three chromosomes and six bevalents are observed in pea plant. What type of cytological abnormality is present in this plant?A. TriploidB. Primary trisomicC. Secondary trisomicD. Inversion homozygote |
| Answer» Correct Answer - B | |
| 529. |
In which mode of inheritance do you except more maternal influence among the offspringA. AutosomalB. CytoplasmicC. Y-linkedD. X- linked |
| Answer» Correct Answer - B | |
| 530. |
Mutation can be induced with :A. IAAB. ethyleneC. Gamma radiationsD. Infra red radiations |
| Answer» Correct Answer - C | |
| 531. |
Cromosome ends are calledA. SatellitesB. TelomersC. CentromeresD. Kinetochores |
| Answer» Correct Answer - B | |
| 532. |
Stickle cells anaemia isA. Autosomal dominant inheritacneB. X-linked recessive inheritacneC. Autosomal recessive inheritacneD. X-linked dominant inheritance |
| Answer» Correct Answer - C | |
| 533. |
Sickle cell anamia is due to mutatioon ofA. CTC to CACB. CTG to CAGC. CAG to CTCD. CGC to CAC |
| Answer» Correct Answer - A | |
| 534. |
Read the following statement s and choose the correct option In p[henylketonuria the affected person does not secrete the enzyme to con vert pheylalnine to typrosine (II)Possibility of male becoming haemophiliac is extremely rare (III) Sickle cell anaemia is caused by the substitution of glutamic acid by valine at fifth position of beta chain of haemoglobin (IV) Myotonic dystrophy is an autosomla dominant traitA. I and II alone are wrongB. II and III alone are wrongC. II alone is wrongD. II and IV alone are wrong |
| Answer» Correct Answer - B | |
| 535. |
Which one of the following symbols and its representation, used in human pedigree analysis is correctA. B. C. D. |
| Answer» Correct Answer - D | |
| 536. |
Study the pedigree chart of certain family given here and select the correct conclusion A. The female parent is heterozygousB. The parents could not have had a normal doughter for this charcterC. The trait under study could not be colour blindnessD. The male parent is homozygous dominant. |
| Answer» Correct Answer - A | |
| 537. |
Study the pedigree chart what does it show? A. Inheritacne of a condition like phenylketonur as an atuosomal recessive traitB. Inheritatacne of a resceesive sex linked disease like hamemophiliaC. Inheritacne of sex linked inborn error of metabolism like pheylketonuriaD. Pedigree chats is worng as this is not possible |
| Answer» Correct Answer - A | |
| 538. |
From the pedigree chart find out if A. Parents are homozygousB. Parents are heterozygousC. Parents are homozygous recessiveD. Trait is Y- linked |
| Answer» Correct Answer - B | |
| 539. |
Kappa paritcvles are present inA. Mirabilis jalapaB. Zea maysC. Limnaea peragraD. Paramecium aurelia |
| Answer» Correct Answer - D | |
| 540. |
Kappa paricles were discovered byA. CorrensB. SonnebornC. RhodesD. Bycott et al |
| Answer» Correct Answer - B | |
| 541. |
Assertion : In Drosophila, one strain shows more sensitivity towards CO2Reason: The sensitivity is due to the presence of a heat labile substance within the cytoplasm called sigma.A. Both Assertion and reason are true and the reason is a correct explanation of the AssertionB. both Assertion and Reason are true and the Reason is not the correct explanation of the AssertionC. Assertion is true, but the Reason is falseD. Assertion is false, but the reason is true |
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Answer» Correct Answer - B iii.CO2 sensitivityis regulated by the presence of heat labile factor singma, i. e. Which is responsible for the inheritance of CO2 sensitivity only |
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| 542. |
Phenyletoniuria is autosomal reason disorder of chromosomeA. 11B. 12C. 16D. 17 |
| Answer» Correct Answer - B | |
| 543. |
Mutation is a change that isA. Never inheritedB. Inherited only in `F_(2)` generation fC. InheritedD. Responsible for plant growth |
| Answer» Correct Answer - C | |
| 544. |
Chromosomes other than sex chromosomes are calledA. AllsomoesB. AutosomesC. Lampbrush chromosomesD. Hetersomoes |
| Answer» Correct Answer - B | |
| 545. |
The gene that controls the rate of mutation of another gene is :A. Regulator geneB. Inducer geneC. Mutable geneD. Mutator gene |
| Answer» Correct Answer - D | |
| 546. |
Mutation in which a part or complete gene is removed isA. DeletionB. InversionC. TranslocationD. Duplication |
| Answer» Correct Answer - A | |
| 547. |
Illegitamte crossing over is another terma forA. TransitionB. TransversionC. Reciprocal transloctionD. None of the above |
| Answer» Correct Answer - C | |
| 548. |
Gene mutation are those which involveA. The change in nature and sequence of base triplets of DNAB. The change in genomeC. The change in all the genesD. The disapperance of certain part of chromosome |
| Answer» Correct Answer - A | |
| 549. |
A genomatic mutation is the mutation involvingA. Change n geneB. Cjhange in chromosomal structureC. Change in the number of chromosomesD. All the above |
| Answer» Correct Answer - C | |
| 550. |
Diagrammatic representation of chromosomes I sA. KaryotypeB. IdiogramC. Chromosome mapD. Phenogram |
| Answer» Correct Answer - B | |