The horn sizes in males of a particular beetle have an interesting distribution: the highest frequencies are around 15 millimeters and 30 millimeters, with few individuals in between.Based on this observation, which mode of selection is most likely to be operating on these horns?
A) Stabilizing selection
B) Directional selection
C) Concentrated selection
D) Disruptive selection
E) Purifying selection

Question

Quizplus · Accepted Answer

Disruptive selection favors extreme traits and can lead to the maintenance of multiple distinct phenotypes in a population, which is consistent with the bimodal distribution of horn sizes in the beetle population.

The Horn Sizes in Males of a Particular Beetle Have