With ____ selection, the frequency of the mean phenotype decreases while the frequencies of extreme phenotypes increase.
A) directional
B) stabilizing
C) disruptive
D) sexual
E) dominant

Question

Quizplus · Accepted Answer

Disruptive selection is the evolutionary process where extreme values for a trait are favored over intermediate values, leading to an increase in the variance in the trait and potentially resulting in a bimodal distribution of trait values within a population. This contrasts with directional selection, which shifts a population's average trait value in a particular direction, and stabilizing selection, which favors intermediate trait values. Sexual selection involves preference by one sex for certain characteristics in individuals of the other sex, and dominant selection is not a recognized form of natural selection.

With ____ Selection, the Frequency of the Mean Phenotype Decreases