A biologist doing a long-term study on a wild spider population observes increased variation in silk thickness. Which of the following could the spider population be experiencing?
A) directional selection
B) stabilising selection
C) disruptive selection
D) genetic drift

Question

Quizplus · Accepted Answer

Disruptive selection could be occurring, as extreme values for silk thickness are being favored over intermediate values. This could result in increased variation in the population over time.

A Biologist Doing a Long-Term Study on a Wild Spider