Selection can maintain variation within populations if heterozygotes

Question

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Heterozygotes can maintain genetic variation within populations if they have a higher fitness than either of the two homozygotes for a given gene. In this scenario, selection would favor the heterozygotes and maintain their presence within the population. This can occur through various mechanisms, such as heterozygote advantage, where the heterozygous genotype has a survival or reproductive advantage over the homozygous genotypes. As a result, this maintains genetic diversity within populations. The other choices (A, B, and C) would not necessarily maintain genetic variation within populations.

Selection Can Maintain Variation Within Populations If Heterozygotes