Hemoglobin S conveys a selective advantage to:
A)tuberculosis
B)malaria
C)smallpox
D)yaws

Question

Quizplus · Accepted Answer

Hemoglobin S provides a selective advantage against malaria. Individuals who carry the sickle cell trait (one copy of the HbS gene) are less likely to develop severe malaria. This is because the abnormal shape of sickle hemoglobin in red blood cells makes it difficult for the malaria parasite to reproduce and survive, thus reducing the risk of infection.

Hemoglobin S Conveys a Selective Advantage To