1. Tardigrade
  2. Question
  3. Biology
  4. An individual affected by phenylketonuria lacks an enzyme that converts the amino acid into .

Q. An individual affected by phenylketonuria lacks an enzyme that converts the amino acid ________ into _______.

 151  143 NTA AbhyasNTA Abhyas 2022 Report Error

Solution:

Phenylketonuria is an inborn error of metabolism where the individual has reduced metabolism of the amino acid phenylalanine. Mutation in the gene causes inhibition of the production of enzyme phenylalanine hydroxylase that converts phenylalanine into tyrosine. Such mutation leads to mental retardation, with reduction in hair and skin pigmentation. It is a recessive autosomal disorder.