A ____ mutation in snails can reverse the direction of shell coiling, which ____ mating.
A) single; encourages
B) single; prohibits
C) double; encourages
D) double; prohibits
E) large deletion; encourages

Question

Quizplus · Accepted Answer

A single mutation in snails can reverse the direction of their shell coiling, which prohibits mating because the genitalia are on the opposite sides, making it physically challenging for snails with opposite coiling directions to mate.

A ____ Mutation in Snails Can Reverse the Direction of Shell