Which enzyme is involved in the breakdown of homogentisic acid, and its deficiency leads to alkaptonuria, a rare genetic disorder characterized by darkening of the skin and connective tissue?

A Homogentisate 1,2-dioxygenase
B Catechol O-methyltransferase
C Phenylalanine hydroxylase
D Tyrosinase
Alkaptonuria is caused by a deficiency of the enzyme homogentisate 1,2-dioxygenase, which is responsible for breaking down homogentisic acid.
NCERT Class 12 Biochemistry
Enzymes in Disease Biochemistry Amino Acid Metabolism Disorders Hard MEDICAL Confidence: high