When no molecule X is present, can the transcription factor A bind to either site on the DNA? [ Select ] ["yes", "no", "", ""]
When there are low levels of molecule X, transcription factor A-X is able to bind to site 1. What can you tell about the affinity of transcription factor A-X complex for site 1 vs. site 2? [ Select ] ["A-X has higher affinity for site 1", "A-X has higher affinity for site 2"]
Which site requires a much larger concentration of the transcription factor A-X complex in order to bind? [ Select ] ["Site 1", "Site 2"]