In lac operon, ___binds to the repressor protein could initiate the transcription of structural genes.()
A. cAMP
B. Lactose
C. allolactose
D. CAP
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In lac operon the role of allolactose is:()
A. Repress the negative regulation
B. Induce the negative regulation
C. Repress the positive regulation
D. Induce the positive regulation
The lac operon regulates gene expression on:()
A. Replication level
B. Transcription level
C. Post-transcription level
D. Translation level
E. Post-translation level
The core enzyme of RNA polymerase slide along the template strand in the direction of 5'→3'.()
Transcription products in prokaryotes must be polycistron.()
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