Question

If sickle cell is an inherited disease and no one else in his immediate family has it, where do you think it could have come from?

Answer 1

Step-by-step explanation:

Sickle cell disease occurs when a person inherits two abnormal copies of the β-globin gene (HBB) that makes haemoglobin, one from each parent. This gene occurs in chromosome 11. Several subtypes exist, depending on the exact mutation in each haemoglobin gene