Heavy flooding kills all of the striped ground squirrels in a population, leaving only solid-colored squirrels that lack an allele for stripes. Which term best describes the loss of the striped allele from the ground squirrel population?
A.
founder effect
B.
genetic drift
C.
gene flow
D.
gene migration
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answer is D please mark me as a brainliliest
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Genetic drift. It is under the mechanism of genetic drift that allele frequencies of a population change over the course of generations due to chance/sampling error.
Genetic drifts happens in all populations but its effects are bigger in smaller populations.
Genetic drifts also have large effects when a population is reduced by natural calamities (like floods) and also due to migration of a small group to form a separate colony.
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