The function of the catabolite activator protein (CAP) is to:

The function of the catabolite activator protein (CAP) is to:
  a. increase the affinity of the promoter region for RNA polymerase.
  b. decrease RNA polymerase activity.
  c. deactivate RNA polymerase after binding to AMP.
  d. bind to and activate RNA polymerase directly.
  e. block RNA polymerase from accessing the DNA template.

Question 2

An activator protein would have which of the following effects on an operon with a positive control mechanism?
  a. Stimulate transcription.
  b. Turn off transcription.
  c. Stimulate transcription when a coactivator is bound to the allosteric site.
  d. Inhibit transcription when a coactivator is bound to the allosteric site.
  e. Activator proteins only work on operons under negative control.