Which of the Following Is NOT True Concerning Phenylketonuria (PKU)

question 68

Multiple Choice

Which of the following is NOT true concerning phenylketonuria (PKU) ?

• A) It is now detected through a blood test shortly after birth.
• B) It is caused by an autosomal recessive gene.
• C) It is a metabolic disorder.
• D) It occurs in approximately 1in 100-500 live births in North America.
• E) It results in an inactive liver enzyme, leading to mental retardation.

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