Essentials of Biology 4th Edition by Sylvia Mader ,Michael Windelspecht

تمرين 1

A small, reproductively isolated religious sect called the Dunkers was established by 27 families that came to the United States from Germany 200 years ago. The frequencies for blood group alleles in this population differ significantly from those in the general U.S. population. This is an example of
A) negative assortative mating.
B) natural selection.
C) the founder effect.
D) the bottleneck effect.
E) gene flow.