#Question id: 4033
#Unit 3. Fundamental Processes
Which of the following statements is false regarding the sigma-factor?
A. It does not have a DNA-binding domain.
B. Interaction with the core enzyme unmasks the DNA-binding region.
C. Subregions 2.4 and 4.4 are involved in promoter recognition.
D. It can also bind to the nontemplate strand.
#Question id: 4034
#Unit 3. Fundamental Processes
Which of the following would most likely occur if an in vitro transcription assay is performed using a cell extract containing an alpha subunit without the C-terminal domain?
#Question id: 4035
#Unit 3. Fundamental Processes
Which of the following is most involved in elongation of the RNA transcript?
#Question id: 4036
#Unit 3. Fundamental Processes
Which of the following does not have a DNA-binding domain?
#Question id: 4037
#Unit 3. Fundamental Processes
Which of the following statements is true about a lac operon with the following genotype? ___
I- Oc Z+ Y-
I- O+ Z- Y-
#Question id: 4038
#Unit 3. Fundamental Processes
Which of the following plasmids could be used to restore inducible regulation of -galatosidase in this mutant: I+ Oc Z - Y+ A+?