The lactose level is high is that the environmental condition could lead to transcription of the lactose operon in the bacterium E. coli
When lactose is present, the lac repressor loses its DNA-binding ability. This clears the way for RNA polymerase to bind to the promoter and transcribe the lac operon.
The lac operon within the bacterium Escherichia coli functions by a repression mechanism in which an inhibitor protein (lacI) binds to regulatory sites (lacO) in the promoter and turns off transcription
The lac operon is regulated by specific protein which turn it on when it's an environment where the food source is lactose, it might begin to turn the lactose into digestible galactose and glucose. When it's not around lactose on the other hand, it's switched off by proteins that bind to DNA and block transcription.
Learn more about transcription of lactose :
brainly.com/question/22099796
#SPJ4
