A defect in the enzyme which converts phenylalanine into tyrosine is characteristic of the disease

Question

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Phenylketonuria (PKU) is a genetic disorder that is caused by a deficiency in the enzyme phenylalanine hydroxylase, which is responsible for converting the amino acid phenylalanine into the amino acid tyrosine. As a result, individuals with PKU cannot properly metabolize phenylalanine, leading to a build-up of toxic byproducts in the body that can cause intellectual disability, seizures, and other health problems. The other options (B, C, and D) are not associated with a defect in the phenylalanine to tyrosine conversion pathway.

A Defect in the Enzyme Which Converts Phenylalanine into Tyrosine