Color blindness is caused by heritable mutations in cone photoreceptors.How many cone types does the retina of a colorblind individual typically contain?
A)only one
B)two
C)three
D)four
E)five

Question

Quizplus · Accepted Answer

A colorblind individual typically lacks one of the three types of cone photoreceptors. This means they have only two types of cones, usually red-green color blindness is more common, which means individuals are missing either the red or green cone. As a result, they can only distinguish between two primary colors.

Color Blindness Is Caused by Heritable Mutations in Cone Photoreceptors