Q. A person is suffering from disease phenylketonuria, which is an autosomal recessive disease. Which of these is lacking in the person?

A) Homogentisic acid
B) Phenylalanine hydroxylase
C) Caeruloplasmin
D) Cystine
Explanation

Phenylketonuria is due to deficiency of liver enzyme phenylalanine hydroxylase.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.