Question

Which statement accurately describes sickle cell anemia?

A) Sickle cell anemia is caused by a bacterial infection.
B) Sickle cell anemia is an autosomal recessive genetic disorder.
C) Sickle cell anemia is more common in individuals with normal hemoglobin.
D) Sickle cell anemia is a result of excessive blood clotting.

Answer 1

b) sickle cell anemia is an autosomal recessive genetic disorder.

Answer 2

Sickle cell anemia is an autosomal recessive genetic disorder caused by a mutation in the hemoglobin gene, leading to abnormally shaped red blood cells and various health complications.

Step-by-step explanation:

The correct statement that accurately describes sickle cell anemia is: B) Sickle cell anemia is an autosomal recessive genetic disorder. Sickle cell anemia is caused by a mutation in one of the hemoglobin genes, which results in the production of an abnormal type of hemoglobin, called hemoglobin S. This defective hemoglobin causes red blood cells to take on a sickle or crescent shape, particularly under low oxygen concentrations.

The sickle-shaped cells can become lodged in narrow blood vessels, obstructing blood flow and leading to various health issues, such as pain, organ damage, and strokes. It is important to note that sickle cell anemia is not caused by bacterial infection, excessive clotting, or seen more commonly in individuals with normal hemoglobin.