Sickle Cell Anemia I

Multiple Choice

Sickle cell anemia I.is caused by mutation in the human gene that codes for a protein expressed in the red blood cells.
II) is a genetic disease,inheritable from one's parents.
III) can cause red blood cells to become sickle shaped.
IV) can clog organs,reducing their blood supplies.

A) I and II only
B) I and III only
C) I,II,and III only
D) I,II,III,and IV