Explain how prokaryotic genes are expressed in an operon mod

Solution

In bacteria, groups of genes are clustered together in a unit called an operon. An operon makes it easy for the bacteria to turn on all the genes needed for performing a certain function. Genes need to be told when to “turn on” and when to “turn off” so that the proper amount of protein is produced when and where it is necessary.

Three major components of an operon are promoter, operator, and the structural genes they control.