The lac operon. In the absence of lactose, the repressor protein encoded by the I gene binds to the lac operator and prevents transcription. Binding of allolactose to the repressor causes it to leave the operator. This enables RNA polymerase to transcribe the three genes of the operon.n the absence of lactose, the repressor protein encoded by the I gene binds to the lac operator and prevents transcription. Binding of allolactose to the repressor causes it to leave the operator.
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Kaplan suggests that in QT 6 and 7 above 60 is good means you have a high chance of passing nclex. Since you have 2 weeks before exam solidify your weak areas then take the mandatory yes 2 day of no studying, its rest relax and uh try to have fun. GOtta recharge the brain before big test.