What is the lac operon in E. coli a classic example of?

1 Answer
Robert W.
Jul 8, 2017

Gene regulation

Explanation:

I believe that the lac operon in E coli was one of the first to be discovered in terms of gene regulation. If the substrate is in high supply, it will promote the expression of the required gene for the enzyme. If the substrate drops in concentration, the gene is not expressed and enzyme production reduces. This allows the E coli to be more efficient and doesn't waste resources.
Could be wrong though! :)

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