If the observed allele frequencies in a population differ significantly from those predicted by the Hardy-Weinberg equilibrium theory, then
A)the population is in genetic equilibrium.
B)evolution is not occurring.
C)mutations have stopped occurring.
D)the population is a breeding isolate.
E)evolution is occurring.

Question

Quizplus · Accepted Answer

The Hardy-Weinberg equilibrium provides a mathematical model that describes how allele frequencies in a large, randomly mating population remain constant from generation to generation, provided that no evolutionary influences (such as natural selection, genetic drift, mutation, gene flow, and non-random mating) are acting on the population. If observed allele frequencies significantly differ from those predicted by this model, it suggests that one or more of these evolutionary forces are at work, indicating that evolution is occurring.

If the Observed Allele Frequencies in a Population Differ Significantly