Lac operon follows a trans-acting control mechanism.
Lac operon follows a trans-acting control mechanism. Correct Answer True
Regulatory sequences like the operator are called cis-acting elements, because they affect the expression of only linked genes on the same DNA molecule. On the other hand, protein like the repressor can affect the expression of genes located on the other hand; proteins like the repressor can affect the expression of genes located on the other chromosomes within the cell. The lac operon is an example of negative control because binding of the repressor blocks transcription.