30 points!
When is gene expression blocked in the lac operon system?
The repressor prot...
30 points!
When is gene expression blocked in the lac operon system?
The repressor protein destroys the genes required to produce enzymes.
The repressor protein blocks the genes from making mRNA.
Lactose binds to the repressor and changes its shape.
RNA polymerase begins transcribing the genes.
Answers: 1
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