The holoenzyme refers to the complex of ( ). A: Enzyme-Substrate B: Enzyme-Inhibitor C: Enzyme-Cofactor D: Enzyme-Product

Which of the following statement about RNA polymerase in prokaryotes is correct: A: Holoenzyme is composed of five subunits (ααββ′σ) B: Any subunit of holoenzyme cannot bind to DNA separately in vivo C: Core enzyme consists of five subunits(ααββ′ω) D: σ factor helps RNA polymerase to recognize promoter

Which of the<br/>following statement about RNA polymerase in prokaryotes is<br/>correct:() A: Holoenzyme is composed of five subunits (ααββ′σ) B: Any subunit of<br/>holoenzyme cannot bind to DNA separately in vivo. C: Core enzyme<br/>consists of five subunits(ααββ′ω) D: σ factor can<br/>catalyze the synthesis of RNA E: σ factor<br/>helps RNA polymerase to recognize promoter

In eukaryotes, the RNA polymerase responsible for mRNA transcription is A: RNA polymerase I B: RNA polymerase II C: RNA polymerase III D: RNA holoenzyme E: RNA core enzyme

Which one of the following statements about E. coli RNA polymerase is false? A: the holoenzyme includes the sigma factor. B: the core enzyme includes the sigma factor. C: it requires Mg2+for its activity. D: it requires Zn2+for its activity.

RNA polymerase holoenzyme initiates transcription which involves A: recognition of the -10 sequence and -35 sequence B: recognition of the -10 sequence onl C: recognition of the -35 sequence only D: recognition of the -100 sequence only E: none of the above