题目内容
Which of the following conditions lead to the lowest expression of lac operon:()
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Bacteria is intended to consume glucose at first, and enzymes to metabolize other sugars would be produced after exhaustion of glucose. This phenomenon can be called:()
The repressor protein can binds to ___ and inhibit the transcription of structural genes.()
In lac operon, ___binds to the repressor protein could initiate the transcription of structural genes.()
In lac operon the role of allolactose is:()
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