Which of the following statements about the sigma factor is correct?
A．A subunit of RNA polymerase responsible for recognizing a specific starting point for transcription of RNA on a DNA template
B. A subunit of DNA polymerase that can bidirectionally synthesize RNA in the 5’→3′ and 3’→5′ directions
C. Recognizes termination signals on DNA templates
D. Is a small molecule organic compound
Answer:A
Which of the following statements about the sigma factor is correct?
A．A subunit of RNA polymerase responsible for recognizing a specific starting point for transcription of RNA on a DNA template B. A subunit of DNA polymerase that can bidirectionally synthesize RNA in the 5’→3′ and 3’→5′ directions C. Recognizes termination signals on DNA templates D. Is a small molecule organic compound