In Catabolite Repression, What is Indicated by High Levels of CAMP

Question

In catabolite repression, what is indicated by high levels of cAMP?
A) low lactose
B) low glucose
C) high lactose
D) high glucose

Accepted Answer

High levels of cAMP in catabolite repression indicate low glucose levels. When glucose is scarce, cAMP levels increase, which in turn activates CAP (catabolite activator protein), facilitating the transcription of genes involved in the metabolism of alternative sugars such as lactose.