What occurs to allele frequencies in a population at Hardy-Weinberg equilibrium over time?

When a population is at Hardy-Weinberg equilibrium, it is characterized by specific conditions such as no mutations, large population size, random mating, no gene flow, and no selection. Under these conditions, the allele frequencies remain constant from one generation to the next. This constancy demonstrates that evolution, in the Darwinian sense, is not happening in this population, as there is no change in genetic composition over time.

Thus, the correct response encapsulates the essence of the Hardy-Weinberg principle, which serves as a baseline for understanding how evolutionary processes affect allele frequencies. If any of the Hardy-Weinberg assumptions are violated, changes in allele frequencies can occur, potentially leading to fixation or other evolutionary dynamics, but as long as the population remains in equilibrium, the allele frequencies will stay the same.