Biology, 26.06.2020 16:01 Niktorres560Luckynik
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.
A. The repressor is removed from the operator
B. RNA polymerase binds to the promotor region
C. Lactose enzymes genes are expressed by the operon
D. The regulatory gene expresses the repressor protein
E. The repressor is inactivated by lactose
Answers: 3
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The lac operon in E. coli controls the gene expression of the enzymes that digest lactose in the cel...
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