When considering sickle cell anemia and malaria,
A) both diseases are determined entirely by genetics.
B) the geographic distributions of the two are very similar.
C) there is no overlap in their geographic distributions.
D) both disease are caused by the same parasite.
E) the two diseases show no know relationship.

Question

Quizplus · Accepted Answer

Sickle cell anemia and malaria have similar geographic distributions because sickle cell trait provides some protection against malaria. Therefore, areas with high rates of malaria also tend to have high rates of sickle cell anemia. However, this does not mean that the diseases are caused by the same parasite or entirely determined by genetics.

When Considering Sickle Cell Anemia and Malaria