What happens to transcription at the lac operon when lactose is absent and why?
What happens to transcription at the lac operon when lactose is present and why?
What happens to transcription at the trp operon when tryptophan is absent and why?
What happens to transcription at the trp operon when tryptophan is present and why?
What happens to the rate of transcription when the glucose levels are high and lactose levels are low?
What happens to the rate of transcription when the glucose levels are low and lactose levels are high?