The old order Amish in Lancaster County is an example of a population that underwent
A) a bottle neck.
B) mutation.
C) a founder effect.
D) gene flow.
E) genetic drift.

Question

Quizplus · Accepted Answer

The Amish population in Lancaster County is an example of a founder effect, which occurs when a small group of individuals leave their larger population and establish a new, isolated population. As a result, the genetic diversity of the new population is limited to the genetic variation present in the original group of founders. The Amish population in Lancaster County is descended from a small group of individuals who immigrated to the area in the early 18th century, and this population has remained relatively isolated ever since. This has resulted in a higher incidence of certain genetic disorders that are rare in the general population.

The Old Order Amish in Lancaster County Is an Example