Question

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

Explanation:

Sickle - cell disease is caused by a genetic mutation in the gene that codes for hemoglobin. This mutation leads to abnormal - shaped red blood cells (sickle - shaped). A deficiency in dietary iron causes iron - deficiency anemia, a deficiency in intrinsic factor causes pernicious anemia, and overproduction of hemoglobin is not the cause of sickle - cell disease.

Answer:

B. A genetic mutation