Gene Flow Through Migration ________

Question

Gene flow through migration ________.
A) has no effect on allele frequencies of populations
B) can go only in one direction
C) may have the largest impact on small populations, such as those on islands
D) maintains the Hardy-Weinberg equilibrium

Accepted Answer

Migration can introduce new alleles into a population and increase genetic diversity. In small populations, even a small amount of migration can have a big impact on allele frequencies. This is particularly important for populations on islands, where there may be limited gene flow from surrounding areas. Migration does not necessarily maintain the Hardy-Weinberg equilibrium, as it can introduce new alleles and change allele frequencies.