Question

Which of these is an example of gene flow?

A) German immigrants settle in a colony in Eastern Pennsylvania without mixing with the locals.
B) A few black sparrows join a population of brown sparrows and mate with them.
C) Indiscriminate hunting reduces the blue whale population, which later revives.

Answer 1

The answer is B because I just got 5/5 on the test

Answer 2

I think the correct answer from the choices listed above is option A. An example of gene flow would be that German immigrants settle in a colony in Eastern Pennsylvania without mixing with the locals. Gene flow is the movement of individuals from one population to another. It is also called migration.