The several hundred species of picture-winged fruit flies of the Hawaiian Islands are genetically very similar, yet they all differ markedly from their ancestral population in Asia.This is probably an example of _____
A)gene flow.
B)sexual selection.
C)directional selection.
D)founder effect.

Question

Quizplus · Accepted Answer

The founder effect occurs when a small group of individuals becomes isolated from a larger population, leading to reduced genetic variation and potentially significant differences from the original population, as seen in the Hawaiian fruit flies.

The Several Hundred Species of Picture-Winged Fruit Flies of the Hawaiian