A low level of ________ in a person with sickle-cell disease causes the red blood cells to have a crescent or sickle shape.
A. ferritin
B. immunoglobulin
C. factor VIII
D. oxygen
Answer:D
A low level of ________ in a person with sickle-cell disease causes the red blood cells to have a crescent or sickle shape.
A. ferritin B. immunoglobulin C. factor VIII D. oxygen
Explanation: A) The ferritin level is not low in sickle-cell disease.