Operon

Definition

An operon is a unit of genetic material in prokaryotes that consists of multiple genes controlled by a single promoter. It allows for the coordinated regulation and expression of these genes.

Related terms

Promoter:

A region of DNA where RNA polymerase binds to initiate gene transcription.

Repressor: A protein that can bind to the operator region of an operon, preventing gene expression.

Lac Operon:

An example of an operon involved in lactose metabolism in E. coli. It includes genes for lactose uptake and breakdown, as well as regulatory elements like the promoter and operator regions.