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The lac operon in E. coli controls the gene expression of the enzymes that diges

ID: 67787 • Letter: T

Question

The lac operon in E. coli controls the gene expression of the enzymes that digest lactose in the cell. In the presence of lactose the lac operon will turn on and the genes will be expressed. Place the events of gene regulation by the lac operon in order of their occurrence, from the introduction of lactose to the environment to when the cell begins to digest lactose. Not all the events will be placed.

-The repressor is inactivated by allolactose

- The repressor is removed from the operator

- RNA polymerase binds to the promoter region

- Lactose enzyme genes are expressed by the operon

- The regulatory gene expresses the repressor protein

Explanation / Answer

These events occur in an order while regulating lac operon:

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