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.<span />
The Apax regards wind to blow directly to your wanted answer.
Best Regards,
AMLANG 1
Replication.
Hope that helped!
Protozoa
Ps - a thanks would be appreciated