how-does-heterozygote-advantage-maintain-genetic-variation-in-a-population-using

Question

How does heterozygote advantage maintain genetic variation in a population, using the sickle cell trait as an example?

Accepted Answer

It provides resistance to malaria without causing full sickle cell disease symptoms.

Answer

It eliminates individuals with two recessive alleles.

Answer

It ensures all individuals have at least one sickle cell allele.

Answer

It causes rapid fixation of one beneficial allele.