Which is the substrate of RNA synthesis during transcription process?()
A. dATP
B. NTP
C. dNTP
D. AMP
E. TTP
查看答案
Which of the following descriptions about DNA and RNA polymerase are correct:()
A. RNA polymerase synthesize RNA chain using nucleoside diphosphate instead of nucleoside triphosphates.
B. RNA polymerase can initiate transcription without a primer, and nucleotides are added to 5’ end of the growing RNA chain.
C. RNA polymerase can add nucleotides in both 3’ or 5’ end of RNA chain.
D. BothRNA polymerase and DNA polymerase can only add nucleotides to 3’ end of the polynucleotides.
Therecognition sequence of RNA polymerase in prokaryotic cell is usually located in:()
A. -35,-10 region upstream transcription start site.
B. -35,-10 region downstream transcription start site.
C. TATA box upstream transcription start site.
D. no specific region.
RecA protein can bind to both single-strand DNA and double-strand DNA, to promote the autosynapsis between them.()
No matter how Holliday junction is divided, heteroduplex DNA would be generated in both of two DNA molecules.()
微信支付 
支付宝支付