Which of the following, when taken up by the cell, binds to the repressor so that the repressor no longer binds to the operator?
A) ubiquitin
B) inducer
C) promoter
D) repressor
E) corepressor

Question

Quizplus · Accepted Answer

An inducer is a molecule that when taken up by the cell, binds to the repressor so that the repressor no longer binds to the operator. This allows RNA polymerase to bind to the promoter and initiate transcription of the genes under the control of the operator. Ubiquitin is not involved in gene regulation, it is involved in protein degradation. The promoter is a DNA sequence where RNA polymerase binds to initiate transcription. The repressor is a protein that binds to the operator and inhibits transcription. A corepressor is a molecule that binds to the repressor and enhances its binding to the operator.

Which of the Following, When Taken Up by the Cell