Phenylketonuria is caused by the deficiency o | vedclass

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(B) Phenylketonuria $(PKU)$ is an inborn error of metabolism inherited as an autosomal recessive trait.It is caused by the deficiency of the enzyme $P

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Phenylalanine hydroxylase

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(B) Phenylketonuria $(PKU)$ is an inborn error of metabolism inherited as an autosomal recessive trait.It is caused by the deficiency of the enzyme $Phenylalanine$ hydroxylase.This enzyme is responsible for converting the amino acid $Phenylalanine$ into $Tyrosine$.Due to the lack of this enzyme, $Phenylalanine$ accumulates and is converted into phenylpyruvic acid and other derivatives, which leads to mental retardation and other symptoms.

Phenylketonuria is caused by the deficiency of which enzyme?

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Assertion $(A) :$ Phenylketonuria is an inborn error of metabolism and inherited as the autosomal dominant trait.
Reason $(R) :$ The disease is caused by mutation in the gene that codes for the enzyme phenylalanine hydroxylase.

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