Gene flow occurs
A)as a result of genetic drift.
B)if gametes, rather than individuals, move among populations.
C)as a result of mutations in one population but not in another.
D)when individuals within a population interbreed.

Question

Quizplus · Accepted Answer

Gene flow occurs when gametes, rather than whole individuals, move between populations. This can happen through migration, wind or water dispersal of pollen or spores, or other mechanisms that transport reproductive cells between populations. Genetic drift, on the other hand, refers to random fluctuations in allele frequencies within a population due to chance events, not gene flow. Mutations can also contribute to genetic variation within populations, but they do not necessarily involve movement of genes between populations like gene flow does. And while interbreeding within a population can affect genetic diversity and structure, it does not involve movement of genes between populations either.

Gene Flow Occurs