A Sharp Cline May Indicate

Question

A sharp cline may indicate
A) a sudden increase in the mutation rate.
B) a population bottleneck.
C) a geographical obstacle, such as a mountain.
D) exposure to a devastating infectious disease.
E) nonrandom mating.

Accepted Answer

A sharp cline often indicates a geographical obstacle that creates a distinct boundary between populations, leading to abrupt changes in allele frequencies.