Which is not a necessary condition for the Hardy-Weinberg equation to be true?

Explanation

The Hardy-Weinberg principle states that allele frequencies in a large, randomly mating population remain constant, provided that no natural selection, mutation, migration, or genetic drift occurs. Therefore, the conditions required are no mutation, random mating, no gene flow, a large population size, and no natural selection.Option D is correct because a small population is not a required condition; rather, a large population is needed to prevent significant genetic drift.Options A, B, and C are incorrect because they each describe conditions necessary to maintain Hardy-Weinberg equilibrium by preventing changes in allele frequencies.