In contrast to positive and negative selection, _____ selection acts to maintain two or more alleles in a population.
A)balancing
B)disruptive
C)stabilizing
D)directional

Question

Quizplus · Accepted Answer

Balancing selection refers to natural selection that keeps two or more variants of a gene in the population's gene pool. This could happen through heterozygote advantage, where in certain environments, individuals with two different alleles are favored over those with only one allele. Alternatively, balancing selection could be due to frequency-dependent selection, where the fitness of a particular variant changes depending on its frequency in the population.

In Contrast to Positive and Negative Selection, _____ Selection Acts