In developmental terminology, PKU refers to _________________?
Correct answer: D. a hereditary enzyme deficiency
- A. the effect of thalidomide
- B. Down's syndrome
- C. sickle cell
- D. a hereditary enzyme deficiency
Explanation
PKU, or phenylketonuria, is an inherited enzyme deficiency that prevents normal metabolism of phenylalanine. Without treatment, its buildup can damage cognitive development.
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