In natural populations ... and thus neither is a form of balancing selection. Gene flow is the movement of genes into or out of a population. Such movement may be due to migration of individual ...

A gene known as HbS was the center of a medical and evolutionary detective story that began in the middle 1940s in Africa. Doctors noticed that patients who had sickle cell anemia, a serious ...

In natural populations ... and thus neither is a form of balancing selection. Gene flow is the movement of genes into or out of a population. Such movement may be due to migration of individual ...