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Amino Acid Metabolism - Medical Science

Q1:

A person with phenylketonuria will convert

A phenylalanine to phenylpyruvate

B phenylalanine to isoleucine

C phenylpyruvate to phenylalanine

D tyrosine to phenylalanine

ANS:A - phenylalanine to phenylpyruvate

I think this answer is wrong because in PKU when phenylalanine is accumulated it is converted to phenylpyruvate and this is the toxic substance.