Sickle cell anemia is an autosomal recessive disorder that occurs when a child inherits two copies of the sickle cell gene (HbS), one from each parent. It affects both males and females equally. It is not treated by a low-phenylalanine diet and is not present in many Jews of European descent.

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Sickle Cell Anemia

Question 26

Multiple Choice

Sickle cell anemia

A) occurs in full form when a child inherits two recessive genes.
B) can be treated during infancy if the child is placed on a diet that is low in phenylalanine.
C) affects more males than females.
D) is a heterozygous condition present in many Jews of European descent.

Correct Answer: