Question

Explain an operon with example.

Answer 1

Examples of Operons. A classicexample of an operon in action is the lac operon. The lac operon regulates how bacteria metabolize, or break down, lactose. When lactose isn't around, the bacteria don't waste energy making proteins to break down lactose.

Answer 2

Operator – a segment of DNA that a repressor binds to. It is classically defined in the lac operon as a segment between the promoter and the genes of the operon. ... In the case of a repressor, the repressor protein physically obstructs the RNA polymerase from transcribing the genes.