What describes the greater fitness of individuals who carry one copy of the sickle-cell allele in areas where malaria is common?

Question

Quizplus · Accepted Answer

In areas where malaria is common, individuals who carry one copy of the sickle-cell allele have a greater fitness due to heterozygote advantage. This means that they are less likely to get malaria while also avoiding the negative effects of having two copies of the sickle-cell allele. This results in a higher survival rate and reproductive success, leading to a greater fitness.

What Describes the Greater Fitness of Individuals Who Carry One