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 can
catalyze the synthesis of RNA
E: σ factor
helps RNA polymerase to recognize promoter
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 can
catalyze the synthesis of RNA
E: σ factor
helps RNA polymerase to recognize promoter
举一反三
- 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<br/>is correct about DNA polymerase and RNA polymerase:() A: RNA<br/>polymerases use nucleoside diphosphate instead of nucleoside<br/>triphosphate for synthesis of polynucleotide chains B: RNA<br/>polymerases need primer and add nucleotides in the 5 'end of the<br/>polynucleotide chain C: DNA<br/>polymerase can add nucleotides in both ends of the polynucleotide<br/>chain D: All<br/>of the RNA polymerases and DNA polymerases can only add nucleotides<br/>in the 3’ end of the polynucleotide chain
- Both eukaryotic RNA polymerase and prokaryotic RNA polymerase can directly recognize and bind to promoter.(<br/>)
- Which<br/>of the following statement about DNA polymerase of eukaryotes is NOT<br/>true:() A: DNA<br/>pol α/primase are involved in initial synthesis of the nascent<br/>strand. B: DNA<br/>polδ and ε are mainly responsible for the synthesis of<br/>DNA chains. C: Replacement<br/>of DNA polymerase could happen during DNA synthesis process. D: There<br/>are five kinds of DNA pol:α、β、γ、δ<br/>and ε in eukaryotes
- 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