Question

In repressible operons, an inactive repressor is normally produced that is activated by the metabolic product (corepressor) of the reaction controlled by the operon enzymes.

• A. True
• B. False

Answer 1

The correct option is A True

An operon that is regulated by a co-repressor (chemical substance) is called as the repressible operon. The co-repressor is a non-protein compound, which may come from outside or from metabolism within the cell. The operon is switched off when the co-repressor is present. Co-repressor activates repressor which eventually switches off the operon.

So, the correct option is 'True'.