The Fur in a Species of Mice Ranges from White

Multiple Choice

The fur in a species of mice ranges from white to black (intermediate phenotypes are different shades of gray) . A population of these mice lives in an environment that contains both regions of white sand and regions of black lava rocks. When a scientist examines the frequencies of the different alleles in the population, she finds that, although white mice and black mice are common, gray mice are rare. This is an example of _____ selection.

A) disruptive
B) stabilizing
C) directional
D) sexual