A group of field mice crosses a highway and joins a new population of field mice on the other side, producing offspring with this population. This is an example of
A) gene flow.
B) genetic drift.
C) Hardy-Weinberg equilibrium.
D) assortative mating.
E) hybridization.

Question

Quizplus · Accepted Answer

Gene flow occurs when organisms or their gametes move from one population to another and interbreed, introducing new genetic material into the receiving population. The movement of field mice across the highway and breeding with a new population is a classic example of gene flow, as it involves the transfer of alleles between populations.

A Group of Field Mice Crosses a Highway and Joins