Being born with extra fingers on a hand is called polydactyly.This is more common in some populations in North America than others due to ____.
A)natural selection in favor of extra fingers in these populations
B)random mating with other populations in North America
C)an increase in mutation rate in these populations
D)a founder effect because their ancestors from Europe carried the alleles

Question

Quizplus · Accepted Answer

Polydactyly is more common in certain populations due to the founder effect, where a small group of individuals with specific genetic traits, such as the alleles for extra fingers, established a population. This effect is not due to natural selection, random mating, or increased mutation rates.

Being Born with Extra Fingers on a Hand Is Called