Effect of genetic drift increases when the population size

increases

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decreases

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remaains same

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grows exponentially

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Solution

The correct option is B decreases
Genetic drift is a change in allelic frequency in a population through successive generations which occur by chance. Genetic drift happens in all possible population sizes, but the effect is more pronounced in smaller or decreasing populations as the frequency of the allele is affected more with slight genetic change.

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Assertion:Genetic drift is the change in allele frequencies of a population

Reason: Genetic drift always takes place in the large populations.

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