The lac operon regulates gene expression on:()
A. Replication level
B. Transcription level
C. Post-transcription level
D. Translation level
E. Post-translation level
查看答案
The core enzyme of RNA polymerase slide along the template strand in the direction of 5'→3'.()
Transcription products in prokaryotes must be polycistron.()
Theρfactor possesses both ATPase and helicase activity.()
When transcription is terminated in prokaryotes,σfactor can recognize the termination signal.()