The mutation that became the recessive characteristic for sickle-cell disease is adaptive in:
A) malaria-prevalent environments
B) people not of African descent
C) people of African descent
D) no known environments and, as a recessive characteristic, is likely to die out

Question

Quizplus · Accepted Answer

The sickle-cell trait provides a survival advantage in malaria-prevalent environments because carriers of the trait (heterozygous individuals) are more resistant to malaria.

The Mutation That Became the Recessive Characteristic for Sickle-Cell Disease