Question

what is the underlying cause of sickle cell disease? multiple choice a deficiency in intrinsic factor overproduction of hemoglobin a genetic mutation a deficiency in dietary iron

Explanation:

Sickle - cell disease is caused by a genetic mutation in the gene that codes for the beta - globin subunit of hemoglobin. This mutation leads to abnormal hemoglobin (hemoglobin S) which causes red blood cells to sickle. A deficiency in intrinsic factor is related to vitamin B12 absorption problems, overproduction of hemoglobin is not the cause of sickle - cell disease, and a deficiency in dietary iron causes iron - deficiency anemia.

Answer:

C. A genetic mutation