Which of the Following is NOT Involved in the Regulation

Question

Which of the following is NOT involved in the regulation of the lac operon?
A) an inducer
B) a repressor protein
C) an iRNA
D) glucose
E) cyclic AMP

Accepted Answer

The lac operon is regulated by an inducer (lactose or allolactose), a repressor protein, glucose levels, and cyclic AMP (cAMP) but not by iRNA. iRNA is not a recognized regulatory element in the context of the lac operon.