Multiple Choice
In a repressible operon,the repressor molecule
A) can control the operon only after it is activated by a corepressor.
B) can repress the transcription of the operon on its own.
C) is a molecule made from the operon.
D) binds to the mRNA.
E) must first be made negative to control the operon.
Correct Answer:

Verified
Correct Answer:
Verified
Q64: Suppose that a certain enzyme is synthesized
Q65: Without maintenance methylase,the changes made by DNA
Q66: Some metabolic pathways are regulated in part
Q67: In a bacterial cell, <span class="ql-formula"
Q68: A virus-encoded protein called Tat is<br>A) a
Q70: What is the main difference between eukaryotic
Q71: Which statement about the early genes in
Q72: The presence of a Barr body indicates<br>A)
Q73: An inducer<br>A) inhibits the synthesis of needed
Q74: The binding of an enhancer<br>A) increases the