The Dotted Line in the Following Graph Shows Levels of Glucose

The dotted line in the following graph shows levels of glucose in a culture of wild-type E. coli grown in Moderate that initially contains both glucose and lactose. The solid line shows levels of transcription of the lac operon. Describe what is happening to the culture and the lac operon, referring to the lac repressor, allolactose, cAMP, and CAP (catabolite activator protein).