Genetic Regulation

Gene Regulation

The Operon

Four regions of DNA control the production of a protein such as the enzyme Beta-galactosidease;

a structural gene that holds the codons for the amino acid sequence found in the enzyme.
an operator region right in front of the structural gene.
a promotor region where the RNA making enzyme will bind to the DNA.
a regulator gene which has a role in controling the transcription from the structural gene.

The combined region of the operator and structural gene is called an operon.

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