why-do-individuals-with-one-sickle-cell-allele-and-one-normal-allele-have-an-adv

Question

Why do individuals with one sickle cell allele and one normal allele have an advantage in malaria-endemic regions?

Accepted Answer

They have a resistance to malaria while avoiding severe sickle cell disease symptoms.

Answer

They are more susceptible to malaria but less affected by sickle cell disease.

Answer

They have no evolutionary advantage over homozygous individuals.

Answer

They do not experience any symptoms of sickle cell disease or malaria.