Science, asked by Anonymous, 24 days ago

How does genetic drift occur?​

Answers

Answered by dharmil9
2

Explanation:

In the largest populations, the allele frequency of each gene stays relatively stable. This happens because the genes are not affecting fitness, and thus do not have a natural selection pressure against or for the allele. ... These chance events which lead to changes in frequency are called genetic drift.

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Answered by olivia200447
11

Explanation:

Random drift is caused by recurring small population sizes, severe reductions in population size called "bottlenecks" and founder events where a new population starts from a small number of individuals. Genetic drift leads to fixation of alleles or genotypes in populations.

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