Gentics and Evoloution MCQ question and answer with solution

61

Assertion (A) Haemophilia never occurs to women.
Reason (R) Gene for haemophilia are found in X-chromosomes.

A) Both A and R are true and R is the correct explanation of A B) Both A and R are true, but R is not the correct explanation of A C) A is true, but R is false D) A is false, but R is true

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Answer & Solution

Answer: Option D

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62

The basic requirements for the life to arise include

A) Primitive atmosphere B) Infinite time C) An energy source D) All of the above

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Answer & Solution

Answer: Option D

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63

For a colourblind person, red colour appear as

A) yellow B) blue C) green D) voilet

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Answer & Solution

Answer: Option C

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64

Assertion (A) Human beings have 23 pair of chromosomes, one of which is the sex chromosomes and the remaining are 22 autosomes. The X-linked disease are related to mutation on a sex chromosomes.
Reason (R) Colour blindness results from a mutation in X-chromosome.

A) Both A and R are true and R is the correct explanation of A B) Both A and R are true, but R is not the correct explanation of A C) A is true, but R is false D) A is false, but R is true

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Answer & Solution

Answer: Option B

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65

The X-chromosome or the X-body was first observed by

A) Morgan (1910) B) Castle (1910) C) Bateson (1906) D) Henking (1891)

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Answer & Solution

Answer: Option D

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66

Which of the following enzymes does not need a template for DNA polymerization but insists on a primer?

A) DNA polymerase B) Terminal nucleotidyl transferase C) Reverse transcriptase D) Nucleases

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Answer & Solution

Answer: Option B

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67

In autopolyploids, there is

A) Duplication of the same genome B) Duplication of different genomes C) Fusion of different genomes D) None of the above

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Answer & Solution

Answer: Option A

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68

Theory of origin of life as a result of chemical evolution has been properly explained by

A) Stanley Miller B) Darwin C) Oparin D) S Fox

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Answer & Solution

Answer: Option C

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69

The concept of 'survival of the fittest' was first advocated by

A) Oparin B) Darwin C) Spencer D) Haeckel

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Answer & Solution

Answer: Option C

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70

Match List-I (Evolutionists) with List-II (Achievements) and select the correct answer:

List-I	List-II
a. Haeckel	1. Emphasized the effects of different environments on isolated forms
b. Wagner	2. Suggested that an inner directive guides the course of evolution mainly independent of the environment
c. Guli	3. Pointed out the inevitability of divergence even without difference in environment
d. Karl Nageli	4. Constructed phylogeny of vertebrates on their embryological development

A) a-1, b-2, c-4, d-3 B) a-4, b-3, c-1, d-2 C) a-4, b-2, c-3, d-1 D) a-4, b-1, c-3, d-2

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Answer & Solution

Answer: Option D

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Gentics and Evoloution MCQ question and answer with solution | Biology Gk MCQs