High School

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Coat color in timber wolves ranges from white to gray to black. In forests and grasslands, shades of gray fur blend in with the vegetation better than white or black fur. White- or black-furred individuals are sometimes driven out of their packs and are rarely allowed to mate. As a result, the majority of wolves have gray fur.

What form of selection has taken place in this population?

A) Stabilizing selection
B) Directional selection
C) Disruptive selection
D) Sexual selection

Answer :

Final answer:

The form of selection that has taken place in this population is disruptive selection. The correct option is B.

Explanation:

The form of selection that has taken place in this population is disruptive selection. Disruptive selection refers to a scenario where extreme phenotypes are favored over intermediate phenotypes.

This is because stabilizing selection favors the average phenotype and selects against the extreme variations, leading to a decrease in the population's genetic variance.

In this case, the shades of gray fur blend in better with the vegetation, while white or black fur stands out. This results in white- or black-furred individuals being driven out of their packs and having less opportunity to mate, leading to the majority of wolves having gray fur. The correct option is B.

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