Genetic drift is a change of

Gene frequency in same generation

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Appearance of recessive genes

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Gene frequency from one generation to next

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None of the above

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Solution

The correct option is D
None of the above

The random changes in gene frequencies in a population occurring by chance alone rather than by natural selection is called genetic drift. Although genetic drift occurs in all populations, its effects are most marked in very small isolated populations.

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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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