Multiple Choice
What would be the phenotype of a null mutation in the gene encoding Lac repressor?
A) constitutive expression of the lac operon
B) inducible expression of the lac operon
C) permanently repressed expression of the lac operon
D) cannot predict what would happen to expression of the lac operon
Correct Answer:

Verified
Correct Answer:
Verified
Q2: The scientists who proposed the operon theory
Q3: What is an advantage of using the
Q4: The sigma factor that mediates a global
Q5: A mutation in a ribosome binding site
Q6: As a general principle of gene regulation
Q8: Which molecules are examples of effector molecules?<br>A)Allolactose
Q9: What is one possible advantage to targeting
Q10: How does tryptophan, the end product of
Q11: What is the relationship between the promoters
Q12: An enzyme functions in a biosynthetic pathway