1. Tardigrade
  2. Question
  3. Biology
  4. Individuals suffering from phenylketonuria lack an enzyme required for the conversion of

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Individuals suffering from phenylketonuria lack an enzyme required for the conversion of

NTA AbhyasNTA Abhyas 2022

Solution:

Phenylketonuria is an autosomal recessive disorder. The affected individual lacks an enzyme that converts the amino acid phenylalanine into tyrosine. As a result of this phenylalanine is accumulated and converted into phenylpyruvic acid and other derivatives. Accumulation of these in brain results in mental retardation. These are also excreted through urine because of its poor absorption by the kidney.