Multiple Choice
In the first step of their experiments, Jacob and Monod treated E. coli cells with ultraviolet light or X-rays to ________.
A) decrease the rate of gene expression
B) induce DNA repair enzymes
C) increase the frequency of mutations in all genes
D) selectively mutate the lac operon, leaving all other genes unmutated
Correct Answer:
Verified
Correct Answer:
Verified
Q19: The product of the lacI gene functions
Q21: Use this information to answer the question(s)
Q22: A compound known as X-gal is widely
Q23: Use this information to answer the question(s)
Q24: Which of the following, when taken up
Q25: The product of the lacI gene is
Q26: When many genes of an organism are
Q27: Allolactose, an isomer of lactose, is formed
Q28: In what general way are regulons regulated?<br>A)
Q31: There is a mutation in the repressor