E.coli, the RNA primer at the beginning of each Okazaki fragment is is removed by 。
A: DNA polymerase
B: DNA polymerase I
C: DNA polymerase II
D: DNA polymerase
举一反三
- The polymerase which is used in DNA replication is ( ) A: DNA-dependent RNA polymerase B: DNA-dependent DNA polymerase C: RNA-dependent RNA polymerase D: RNA-dependent DNA polymerase E: none of above
- DNA polymerase III is the largest DNA polymerase in E. coli（）
- The most widely used polymerase in the PCR process is ( ). A: klenow fragment B: T4DNA polymerase C: Taq DNA polymerase D: Vent DNA polymerase
- What is the function of RNA primer during DNA replication? A: to provide a 3’ OH group for DNA polymerase B: to provide a 5’ OH group for DNA polymerase C: to provide a 3’ phosphate group for DNA polymerase D: to provide a 5’ phosphate group for DNA polymerase E: to provide a hydrogen bond for double strand of DNA .
- Using the DNA template in a process called _______ RNA is synthesized utilizing which enzyme? A: translation, RNA polymerase B: transcription, DNA polymerase C: transcription, RNA polymerase D: replication, DNA polymerase
内容
- 0
Both DNA polymerase and RNA polymerase are needed in DNA replication process.()
- 1
以下哪类大肠杆菌DNA聚合酶参与了SOS修复过程 A: DNA polymerase Ⅰ B: DNA polymerase Ⅱ C: DNA polymerase Ⅲ D: DNA polymerase Ⅴ
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DNA<br/>replication requires: (1) DNA polymerase III, (2) helicase, (3) DNA<br/>polymerase I,<br/>(4) DNA-directed RNA polymerase, (5) DNA ligase, the correct order of<br/>their participation is:() A: 4,3,1,2,5 B: 2,3,4,1,5 C: 4,2,1,5,3 D: 4,2,1,3,5 E: 2,4,1,3,5
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The function of DNA polymerase I is to replace RNA primer with DNA. On which strand would you expect DNA polymerase I to be more active? A: the leading strand B: the lagging strand C: equally active on both strands D: neither , only DNA polymerase III is involved in synthesis
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In the following descriptions of DNA polymerase and RNA polymerase, the error is: ( ) A: RNA polymerase requires primers B: DNA polymerase can synthesize DNA using RNA as a template C: The extension direction of the new chain catalyzed by both enzymes is 5'-3'. D: RNA polymerase uses NDP as raw material.