Lac operon: Learn about the lac operon

Learn about the lac operon , a group of genes involved in lactose metabolism in bacteria. Find out how it is regulated by lactose, glucose, and other factors, and see diagrams of its structure and function. Lac operon definition The lac operon is a genetic regulatory system found in bacteria, such as E. coli, that controls the transport and metabolism of lactose. It consists of a cluster of genes that are expressed and produce enzymes when lactose is available, while remaining inactive in the absence of lactose or when a more favorable energy source, like glucose, is present. What is an operon : Explain the Regulator, Operator, Promoter region and Structural genes of Operon . Know more about Regulation of lac operon and Gene Expression at Aakash The lac operon consists of three genes each involved in processing the sugar lactose One of them is the gene for the enzyme β‐ galactosidase This enzyme hydrolyses lactose into glucose and galactose