Sick cell anemia (Sickle cell anemia) is caused by?

Correct option is B

The correct answer is (B) Abnormal levels of hemoglobin

1. Sickle cell anemia is a genetic disorder, inherited from both parents who carry the sickle cell trait.

2. The presence of hemoglobin S in red blood cells leads to their characteristic sickle shape, which disrupts blood flow and leads to a reduced ability to carry oxygen.

3. The condition results in recurrent pain episodes, known as sickle cell crises, and can lead to complications like stroke, organ damage, and infections.

4. Sickle cell anemia is more common in people of African, Mediterranean, Middle Eastern, and Indian subcontinent descent.

5. The disorder can be managed with pain relief, blood transfusions, and in some cases, bone marrow transplants.

• Deficiency of folic acid : While folic acid deficiency can lead to anemia, it is not the cause of sickle cell anemia.

• Deficiency of iron : Iron deficiency causes iron-deficiency anemia, which is different from sickle cell anemia.

• Decreased production of red blood cells : Sickle cell anemia is not caused by the decreased production of red blood cells, but rather by the production of abnormal red blood cells with hemoglobin S.