Home › TS EAMCET › Biology › Principles of Inheritance and Variation › Which enzyme gene is mutated in phenylketonuria?
Which enzyme gene is mutated in phenylketonuria?
APhenylalanine hydroxylase
BTyrosine decarboxylase
CGlucose phosphatase
DPyruvate dehydrogenase
Answer & Solution
Correct answer: A. Phenylalanine hydroxylase
A mutation in the phenylalanine hydroxylase gene causes mental retardation and reduced hair and skin pigmentation.
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