Which of the following is not a symptom of phenylketonuria?(a) Mental retardation(b) Reduction in hair(c) White urine(d) Skin pigmentationThe question was posed to me by my college professor while I was bunking the class.The origin of the question is Inheritance Principles in portion Principles of Inheritance and Variation of Biology – Class 12

Which of the following is not a symptom of phenylketonuria?(a) Mental

1.	Which of the following is not a symptom of phenylketonuria?(a) Mental retardation(b) Reduction in hair(c) White urine(d) Skin pigmentationThe question was posed to me by my college professor while I was bunking the class.The origin of the question is Inheritance Principles in portion Principles of Inheritance and Variation of Biology – Class 12
Answer» The correct answer is (c) White URINE For explanation: White urine is not a symptom of PHENYLKETONURIA. Phenylketonuria is a disease that is CAUSED by a single gene mutation and is characterised by mental retardation, reduction in hair, BLACK urine, and skin pigmentation.

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