#Question id: 4015
#Unit 3. Fundamental Processes
When polymerase bind to promoter, it spontaneously undergoes a transition to the open complex and initiates transcription. This gives a low level of constitutive expression called the basal level. The rate -limiting step in basal level transcription
#Question id: 4016
#Unit 3. Fundamental Processes
Activators that stimulate this kind of promoter work by triggering a conformational change in either RNA polymerase or DNA; that is, they interact with the stable closed complex and induce a conformational change that causes transition to the open complex. This mechanism is an example of
#Question id: 4017
#Unit 3. Fundamental Processes
Which of the following sequences of events occurs when E. coli are released from catabolite repression by transfer to low-glucose medium?
#Question id: 4018
#Unit 3. Fundamental Processes
How does binding of the lac repressor to the lac operator block transcription initiation?
#Question id: 4019
#Unit 3. Fundamental Processes
Which of the following proteins does not “footprint” the lac operon control region?
#Question id: 4020
#Unit 3. Fundamental Processes
You are studying the expression of the gene that appears to be under the control of three different transcription-control regions during mouse embryonic development. Which one of the following is the BEST method to use to determine when each of these regions are active in the developing mouse embryo?