Question
Question: In bacteria, the structural genes can be turned off when –...
In bacteria, the structural genes can be turned off when –
A
The end product of a reaction combines with the repressor protein and activates it.
B
The substrate combines with a repressor protein and inactivates it.
C
The substrate combines with the promoter.
D
The substrate combines with its enzyme and produces a repressor molecule.
Answer
The end product of a reaction combines with the repressor protein and activates it.