Definitions/Explanation : A promoter & The structural gene
A promoter is a $DNA$ sequence that provides binding site for $RNA$ polymerase. It is located at $5 '$ end of the structural gene.
- The structural gene in a transcription unit is flanked by a promoter and terminator.
Operon is a
Lac operon is
The lac operon consists of
Which enzyme / enzymes are responsible for transformation of lactose to galactos in the E.coli culture medium.
Write an explanatory note of gene expression.