Operon

An operon is a group of neighboring genes in bacteria that are controlled together by a single on/off switch called a promoter. When the switch is turned on, all the genes in the operon are activated simultaneously, allowing the cell to produce related proteins efficiently. This coordinated regulation helps bacteria respond quickly to changes in their environment, such as when they need to digest a specific nutrient. Operons are a way for bacteria to organize and control their genes effectively, optimizing their survival and growth with minimal energy expenditure.