This page discusses hemoglobin types, emphasizing Hemoglobin A (HbA) as common in adults and Hemoglobin S (HbS) as the cause of sickle-cell disease, particularly in malaria regions of Africa and Asia....This page discusses hemoglobin types, emphasizing Hemoglobin A (HbA) as common in adults and Hemoglobin S (HbS) as the cause of sickle-cell disease, particularly in malaria regions of Africa and Asia. It explains that sickle-cell anemia arises from inheriting the βS gene from both parents, while individuals with one βS and one βA gene have some malaria resistance.
