The Lac operon is an organized region of the genome that is present in the bacterium Escherchia coli. It is devoted to the metabolism of the sugar lactose (from which the lac designation arises). The lac operon is important in the history of genetics,...

The lac operon is an operon required for the transport and metabolism of lactose in Escherichia coli and some other enteric bacteria. It consists of three adjacent structural genes, a promoter, a terminator, and an operator. The lac operon is regulated...