With respect to phenylketonuria,identify whic | vedclass

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(A) is the correct answer because it is not a case of aneuploidy.$1$. Phenylketonuria $(PKU)$ is an inborn error of metabolism.$2$. It is an autosomal

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It is a case of aneuploidy

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(A) is the correct answer because it is not a case of aneuploidy.$1$. Phenylketonuria $(PKU)$ is an inborn error of metabolism.$2$. It is an autosomal recessive disorder caused by a mutation in the gene encoding the enzyme phenylalanine hydroxylase.$3$. This enzyme is required to convert the amino acid phenylalanine into tyrosine in the liver.$4$. Because the defective gene affects multiple phenotypic traits (such as mental retardation and reduction in hair and skin pigmentation),it is a classic example of pleiotropy.

With respect to phenylketonuria,identify which statement is not correct.

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