question_answer

Select the two statements out of the four (A to D) given below about lac operon.    

(A) Glucose or galactose may bind with the repressor and inactivate it.

(B) In the absence of lactose, the represser binds with the operator region.

(C) The z-gene codes for permease.

(D) This was elucidated by Francois Jacob and Jacques Monod.

 

A) (A), (C)

B) (B), (D)

C) (B), (C)

D) (A), (D)