Q. What does “lac” refer to in what we call the lac operon?
A) Lactose
B) Lactase
C) Lac insect
D) The number 1,00,000
Explanation
In lac operon, lac refers to lactose. The lac operator is a part of the structural genes (lac Z, lac Y, lac A and lac I). It is responsible for the uptake and initial catabolism of lactose. [image:6_image72.wmf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.