Sewall Wright effect is . . . . . . .

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(C) The Sewall Wright effect is another name for $Genetic \ Drift$. Genetic drift refers to the random fluctuations in allele frequencies in a populat

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any alteration in allele frequency of a natural population by pure chance

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(C) The Sewall Wright effect is another name for $Genetic \ Drift$. Genetic drift refers to the random fluctuations in allele frequencies in a population over generations due to chance events,rather than natural selection. It is particularly significant in small populations where random sampling errors can lead to the loss of certain alleles or the fixation of others. Therefore,it is defined as any alteration in allele frequency of a natural population by pure chance.

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