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.
| 401. |
two sister chromoatids are attached with a common :A. telomereB. centromereC. spindle fibresD. chromocenter |
| Answer» Correct Answer - B | |
| 402. |
the structure of the chromoes to which soindle fibre are attached :A. CentromereB. ChromatidC. ChromonemaD. Chromomere |
| Answer» Correct Answer - A | |
| 403. |
Kinetochore isA. End of chromosomeB. surface of centromereC. granule within centromereD. constrication near chromosome end |
| Answer» Correct Answer - C | |
| 404. |
Which of the following is not an aneuploid?A. MonoploidB. 2n-1C. TrisomicD. 2n+2 |
| Answer» Correct Answer - A | |
| 405. |
A mutation changes the original base sequence ofDNA, GATACCG to new swquecne GFTAGCG. What is the type of mutatio?A. TransitionB. TransversionC. TranslocationD. Inversion |
| Answer» Correct Answer - A | |
| 406. |
The frequency of mutations in nature is one inA. `1xx10^(-5)`B. 1xx10^(12)`C. `1xx10^(-5)`D. `1xx10^(-12)` |
| Answer» Correct Answer - A | |
| 407. |
Which of the following is a caase of auto-alloplyploidy?A. AA,AA,AAB. AA,AA,BBC. AA-1D. `1xx10^(-12)` |
| Answer» Correct Answer - B | |
| 408. |
The mutation which returns to the original state is calledA. Reversible mutationB. Lethal mutationC. Backward mutationD. Abnormal mutation |
| Answer» Correct Answer - A | |
| 409. |
Man made cereal isA. TriticumB. HordeiumC. TriticaleD. Eleusine |
| Answer» Correct Answer - C | |
| 410. |
The first man made cereal Triticale has been developed from a cross betweenA. Wheat and OatB. Wheat and MaizeC. Maize and RiceD. Wheat and Rye |
| Answer» Correct Answer - D | |
| 411. |
Which chromosome set is found in male Grasshopper?A. XYB. XC. YYD. XX |
| Answer» Correct Answer - B | |
| 412. |
Blood does not stop coming out of a wound inA. TetanusB. MalariaC. HaemophiliaD. AIDS |
| Answer» Correct Answer - C | |
| 413. |
One of the following is a random procesA. VariationsB. AdaptationsC. EvolutionD. Mutations |
| Answer» Correct Answer - D | |
| 414. |
What form of inheritance does a trait in human have, which is found in the siblings of parents, where the female has the trait, but is never found in siblings of parents, where only the male has the trait?A. X-linked inhertianceB. Y-linked inhertianceC. Autosomal inheritanceD. Maternal (extranuclear) inheritance |
| Answer» Correct Answer - D | |
| 415. |
Drosophila melanogaster possesssesA. 3 pairs sutosomes +1 pair sex chromosomesB. 2 pairs autosomes +2 pairs sex chromosomesC. 1 pairs autosomes +3 pairs sex chromosomesD. 2 pairs autosomes +1 pairs sex chromosomes |
| Answer» Correct Answer - A | |
| 416. |
Melenurea (black urine) is caused by abnormal catabolism ofA. AlanineB. TyrosineC. ProlineD. Tryptophan |
| Answer» Correct Answer - B | |
| 417. |
Frequecy of A allele is 0.6 and that of a allele is 0.4 what would be frequency of heterozygoetes in random mating polultion?A. 0.36B. 0.16C. 0.24D. 0.48 |
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Answer» Correct Answer - D Heterozygotes =2Aa or `2xx0.6xx0.4=0.48` |
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| 418. |
A mutational event, which changes the condo UGG to UAG is known asA. Non-sense mutationB. Point mutationC. mis-sense mutationD. Frameshift mutation |
| Answer» Correct Answer - A | |
| 419. |
Assertion : If both the chromosomes of a homologous pair contain dominant gene representation that the condition is known as trans.Reason: The condition defined above is in response with crossing over.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 - C iv.The trans condition is defined in response with linkage. |
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| 420. |
Hamemophilic carrier female marries a normal man .In her progenbyA. All daughters will have hamemophiliaB. All sons will have hamemophiliaC. 560% doudghters will have haemophiliaD. 50% sons will have lhaemohphilia . |
| Answer» Correct Answer - D | |
| 421. |
Hypertrichlosis of pinna occurs only in mlaed becauseA. Esterogen suppresses the trait I n femalesB. It is induced by testosterone in malesC. Gene for it is present only ion y-chromosomeD. Its gene is recessive in females and ldominant in males. |
| Answer» Correct Answer - C | |
| 422. |
The major/ultimate osurce of variations areA. PolyploidyB. MutationsC. Chromosome aberrationsD. Segregation |
| Answer» Correct Answer - B | |
| 423. |
Mutations are induced mostly byA. UV radiationsB. Beta raysC. Alpha raysD. Gamma rays |
| Answer» Correct Answer - D | |
| 424. |
Mutations are commonlyA. DominantB. CodominantC. RecessiveD. Incomplete |
| Answer» Correct Answer - C | |
| 425. |
Assertion: Hj Muller (1927) first of all demonstrated the use of physical mutagens and got Nobel Prize in 1946.Reason: X-rays, gamma rays are commonly used for producing mutation artificially .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 x. Hj Muller (1927) was the first scientist who demonstrated the use of physical mutagens and got Nobel Prize in 1946. A variety of agents increase the frequency of mutation, such agent are called mutagens. They include chemical mutagens and radiations like X- rays, y-rays and UV-rays. |
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| 426. |
Choose the incorrect matchA. Transiocation _ Change in gene sequenceB. Inversion __ Non-restitutional unionC. Reverse tandem _ Restitutional union duplicationD. All of the above |
| Answer» Correct Answer - C | |
| 427. |
Most animals areA. diploidB. haploidC. heterotropgicD. both (a) and (b) correct |
| Answer» Correct Answer - D | |
| 428. |
Which of the follwing condition is calledA. 2n+1B. 2n+2C. n+1D. 2n-1 and 2n+1 |
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Answer» Correct Answer - D Monosomics(2n-1) one chromosome less then diploid set of somatic chromosme number. |
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| 429. |
Select the incorrect statement from the followingA. Linkage is an exception to the principle of independent assortment in heredityB. Galactosemia is an inborn error of metabolismC. Small population size results in random genetic drift in a populationD. Baldness is a sex-limited trait |
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Answer» Correct Answer - D Statement (d) is incorrect. Baldness is not a sex-limited trait. Baldness is a sex influenced trait. Sex influenced traits are expresed in both males and females, but are usually dominant traits in one sex, but recessive trait in other sex. |
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| 430. |
Reason of fast speciiation in present day crop plant is :A. isolationB. polyploidyC. mutationD. sexual reproduction |
| Answer» Correct Answer - B | |
| 431. |
polyploidy means :A. occurrence of diploid set of chromosomesB. occurrence of haploid set of chromosomesC. occurrence of three or more sts of chromosomeD. all of the above |
| Answer» Correct Answer - C | |
| 432. |
Polyploidy means occurrency ofA. Haploid sets of chromosomesB. Diploid sets of chromosomesC. more than diploid sets of chromosomeD. All of the above |
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Answer» Correct Answer - C Organisms with more than two sets of chromosomes are known as plyploids. There may be triploid(3n) teraploid (4n) and so on. Polyploidy may be of three types, i.e. autopolyploidy, allopolyploidy and autoallopolyploidy. |
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| 433. |
Diploid cells have :A. Two chromosomesB. One set of chromosomesC. Two sets of chromosomesD. Two pairs of homologous chromosomes |
| Answer» Correct Answer - C | |
| 434. |
chromosomes can be stained with one of the following chemicals ?A. EosinB. SafraninC. Light greenD. Acetocarmine |
| Answer» Correct Answer - D | |
| 435. |
Which of the floowing have heterogametic females:A. d and cB. a and bC. a and cD. b and d |
| Answer» Correct Answer - D | |
| 436. |
Linkage in plants was first shown inA. Zea maysB. Lathyrus odoratusC. Oenothera lamarckianaD. Pisum sativum |
| Answer» Correct Answer - B | |
| 437. |
The first attempt to show linkage in plants was doneA. Zea maysB. Oenothera lamarckianaC. Pisum sativumD. Lathyrus odoratus |
| Answer» Correct Answer - D | |
| 438. |
Mendel found that some traits do not assort independently . Later workers found it due to:A. LinkageB. amitosisC. crossing overD. dominace of one trait over another |
| Answer» Correct Answer - A | |
| 439. |
Lack of indepenent assortment of two genes A and B in Fruit fly Drosophile is due to :A. LinkageB. repulsionC. crossing overD. recomination |
| Answer» Correct Answer - A | |
| 440. |
Which of the following shows triploid nature in flowering plants ?A. EmbryoB. MegasporeC. EndopermD. Micospore |
| Answer» Correct Answer - C | |
| 441. |
A colour blind man `(X^(c ) Y)` and a normal brother (XY). What is genotype of father and motherA. `X^(c )Y,X^(c )X^(c )`B. `X^(c )Y,X^(c )X`C. `XY,X^(c )X^(c )`D. `XY,X^(c )X` |
| Answer» Correct Answer - B | |
| 442. |
Which one is a triploid?A. MangoB. WheatC. OrangeD. Banana |
| Answer» Correct Answer - D | |
| 443. |
What causes mutations?A. ColchicineB. Cosmic raysC. Gamma raysD. Crossing over |
| Answer» Correct Answer - C | |
| 444. |
Number of chromosomes can increase or decrease due toA. MutationB. Genetic reptetitionC. NondisjunctionD. All the above |
| Answer» Correct Answer - C | |
| 445. |
Gene is formed ofA. PolynucleotideB. HistoneC. HydrocarbonsD. Lipoprotein |
| Answer» Correct Answer - A | |
| 446. |
X ray induced mutation were introduced in Maize for the first time byA. MullerB. StadlerC. MorganD. Singleton |
| Answer» Correct Answer - B | |
| 447. |
The mechanism of sex determination in birds showsA. Male heterogametyB. femal heterogametyC. Male dominancyD. Female dominancy |
| Answer» Correct Answer - B | |
| 448. |
Which I gynandromorph type of animal?A. Drosophila melanogasterB. BeetlesC. SilkwormsD. All of these |
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Answer» Correct Answer - D these are the animal,s which have characteristics of both male and female individuals. These are mainly found in insects and the term gynandromorph is comnonly used in entomology. |
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| 449. |
The distance between the genes on the chromosomes is measured by usingA. PieiorophyB. Allels frequencyC. CodominanceD. Recombinantion frequency |
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Answer» Correct Answer - D when two genes in a dihybrid cross are situated on the same chromosome, the proportion of parental gene combinations age much higher than the non-parental or recombinant type as linked genes are inhercited toghther in offspring. |
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| 450. |
If an inheritable mutation is observed in a populationA. Sequence annotationB. DNA polymorphismC. linkae expressed sequence tagD. |
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Answer» Correct Answer - B Polymorphism can be difine as variation in individuals at genetic level. Ti can be inherit from parents to their children. |
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