Question

which is not a treatment of sickle-cell anemia?
○ gene therapy to repair the defective genes
○ narcotics and blood transfusions to alleviate pain
○ medication to reduce episodes
○ bone marrow transplants to replace defective cells
○ chemotherapy to destroy the affected blood cells

Explanation:

• Gene therapy: A potential long - term treatment to fix defective genes causing sickle - cell anemia.
• Narcotics and blood transfusions: Used to manage pain (narcotics) and increase healthy red blood cell count (blood transfusions).
• Medication (e.g., hydroxyurea): Reduces sickle - cell crisis episodes.
• Bone marrow transplants: Can replace defective blood - forming cells with healthy ones.
• Chemotherapy: Not a standard treatment for sickle - cell anemia. It is mainly used for cancer (to kill rapidly dividing cancer cells), and sickle - cell anemia is a genetic disorder of red blood cells, not a cancerous condition of blood cells.

Answer:

E. chemotherapy to destroy the affected blood cells