Chapter 18.3, Problem 2COMQ

The cl gene that encodes the λ repressor has two promoters designated $P_{\text{RE}}$ and $P_{\text{RM}}$. Which of the following statements is false?

a. $P_{\text{RE}}$ is activated by the cII protein.

b. $P_{\text{RE}}$ is activated by the $\lambda$ repressor.

c. $P_{\text{RM}}$ is turned on after $P_{\text{RE}}.$

d. $P_{\text{RM}}$ is needed to maintain the lysogenic cycle.