Which Statement Is False About the Utilization of Lactose as a Carbon

Multiple Choice

Which statement is false about the utilization of lactose as a carbon source by E.coli?

A) In the presence of both glucose and lactose,the enzymes necessary for lactose catabolism are produced only in limited amounts.
B) Lactose is the inducer for the enzymes responsible for its own catabolism.
C) In the absence of lactose,the repressor binds to a single site upstream of the lac genes.
D) The catabolic enzymes are encoded in a three-gene operon controlled by a single promoter.