Variation in gene frequencies within populati | vedclass

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(D) : Genetic drift (also known as the Sewall Wright effect) is the random change in the frequency of alleles in a population over successive generati

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genetic drift

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(D) : Genetic drift (also known as the Sewall Wright effect) is the random change in the frequency of alleles in a population over successive generations. Each new generation differs from its parental generation regarding allele frequencies simply because of random variation in the distribution of gametes. This process is more rapid in smaller populations,or when the alleles concerned confer no apparent selective advantage compared to their counterparts.

Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as

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