An earthquake decimates a ground-squirrel population. The surviving population happens to have broader stripes on average than the initial population. If broadness of stripes is genetically determined, what effect has the ground-squirrel population experienced during the earthquake?

A. directional selection

B. disruptive selection

C. a founder event

D. a genetic bottleneck

Question

Biology

Carson Liu

1 September, 05:04

An earthquake decimates a ground-squirrel population. The surviving population happens to have broader stripes on average than the initial population. If broadness of stripes is genetically determined, what effect has the ground-squirrel population experienced during the earthquake?

A. directional selection

B. disruptive selection

C. a founder event

D. a genetic bottleneck

+3

Answers (1)

Know the Answer?

Diego Pearson · Answer 1

Answer: D. a genetic bottleneck

Explanation:

A genetic bottleneck also known as a population bottleneck is one that describes a sharp reduction in the size of a population caused by environmental events like in the above or caused by human activities.