Balanced polymorphism can be maintained by the combined actions of:
A) the founder effect and genetic drift.
B) heterozygote advantage and genetic drift.
C) heterozygote advantage and the founder effect.
D) heterozygote advantage and frequency-dependent selection.
E) frequency-dependent selection and the founder effect.

Question

Quizplus · Accepted Answer

Balanced polymorphism is maintained by heterozygote advantage, where heterozygotes have a higher fitness than either homozygote, and frequency-dependent selection, where the fitness of a phenotype depends on its frequency relative to other phenotypes.

Balanced Polymorphism Can Be Maintained by the Combined Actions Of