Why Are Fetuses with PKU Usually Symptom-Free

question 180

Multiple Choice

Why are fetuses with PKU usually symptom-free?

• A) The organs affected by phenylalanine have not yet developed.
• B) There is a fetal enzyme that metabolizes phenylalanine.
• C) The mother's blood has the enzyme that metabolizes phenylalanine.
• D) Mothers typically eat foods low in phenylalanine.
• E) Phenylalanine quickly breaks down in fetal blood.

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