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  • In the following questions, a statement of assertion (A) is followed by a statement of reason (R)  (1) If both Assertion & Reason are true and the reason is t

In the following questions, a statement of assertion (A) is followed by a statement of reason (R) 

(1) If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark A

(2) If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark B

(3) If Assertion is a true statement but Reason is false, then mark C

 (4) If both Assertion and Reason are false statements, then mark D

Assertion: Genetic drift doesn't favor the fittest people; instead, it happens randomly.

Reason: Chance occurrences that alter the population's allele frequency result in genetic drift. 

Option: 1

A

 


Option: 2

B

 


Option: 3

C

 


Option: 4

D


Answers (1)

best_answer

(a) Both Assertion & Reason are true and the reason is the correct explanation of the assertion. 

Populations do not always contain the individuals that have the best chances of surviving and procreating. The fittest people in a community should theoretically live the longest and procreate the most, yet who lives, reproduces, and whose offspring live to procreate is largely determined by chance. Genetic drift is the mechanism of evolution at work in a population where the allele frequency changes as a result of chance. Hence, option 1 is the correct answer.

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