Mutational equilibrium exists when

Question

Quizplus · Accepted Answer

Mutational equilibrium exists when the rate of mutation from wild-type to mutant is balanced by the rate of mutation from mutant to wild-type. This means that the frequency of the mutant allele remains constant over time. Neutral mutations are not necessarily required for mutational equilibrium, as long as the rate of mutation to the wild-type allele is equal to the rate of mutation to the mutant allele. Positive or negative mutations can also occur, but they must balance each other out for mutational equilibrium to exist. High mutation pressure or genetic drift can affect the frequency of alleles, but they do not necessarily cause mutational equilibrium.

Mutational Equilibrium Exists When