Q. In lac operon, activity of which gene hydrolyzes lactose into glucose and galactose?
A) A - gene
B) Z - gene
C) I - gene
D) Y - gene
Explanation
Z - gene codes for b-galactosidase which hydrolyzes the diasaccharide-lactose into its monomeric forms – glucose and galactose.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.