What occurs when an inducer is added to a medium containing an organism with a metabolic pathway controlled by a repressor?
A) The inducer combines with the repressor and activates the repressor.
B) The inducer combines with the repressor and inactivates the repressor.
C) The inducer combines with the substrate and blocks induction.
D) The inducer combines with the substrate and activates induction.
E) The inducer does not combine with, but functions as a chaperone molecule for, the enzyme-substrate complex.

Question

Quizplus · Accepted Answer

When an inducer is added to a medium containing an organism with a metabolic pathway controlled by a repressor, it combines with the repressor and inactivates it. This allows transcription of the genes involved in the metabolic pathway, leading to the production of the necessary enzymes and metabolites.

What Occurs When an Inducer Is Added to a Medium