enzyme closely related to the synthesis of RNA primer is:()
A: DNA
pol α;
B: DNA
pol γ;
C: DNA
pol δ;
D: DNA
pol I;
E: DNA
pol III
举一反三
- The enzyme closely related to the synthesis of RNA primer is: A: DNA pol α B: DNA pol γ C: DNA pol I D: DNA pol III
- 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
- 在原核生物DNA复制延长中起主要催化作用的酶是(<br/>) A: DNA<br/>polⅠ B: DNA<br/>polⅢ C: DNA<br/>polⅡ D: DNA连接酶 E: 引物酶
- 在原核生物DNA复制延长中起主要催化作用的酶是() A: DNA<br/>polⅠ B: DNA<br/>polⅢ C: DNA<br/>polⅡ D: DNA连接酶 E: 引物酶
- 下列对大肠杆菌DNA聚合酶的叙述不正确的是() A: DNA<br/>pol I可以被特异的蛋白酶水解为大小两个片段 B: DNA<br/>polⅡ是真正的复制酶 C: DNA<br/>polⅢ在复制链延长中起主要作用 D: 大肠杆菌有DNA<br/>pol Ⅰ Ⅱ Ⅲ三种DNA聚合酶 E: 以四种脱氧核苷三磷酸(dNTP)作为作用物
内容
- 0
参与线粒体内DNA复制的DNA聚合酶是: A: DNA pol α B: DNA pol β C: DNA pol γ D: DNA pol δ E: DNA pol ε
- 1
Which<br/>of the following statements about DNA polymerase III is NOT true:() A: Deoxyribonucleotide<br/>are connected to 5’ hydroxyl of synthesized DNA by DNA pol III B: To<br/>catalyze deoxyribonucleotide connected to the primer C: Requires<br/>four kinds of 5’-dNTP D: To<br/>catalyze deoxyribonucleotide connected to 3’ terminal of RNA<br/>primer E: Pyrophosphate<br/>is one of the product
- 2
原核生物DNA复制中，① DNA Pol III；②解链酶；③DNA Pol I；④DNA指导的RNA Pol；⑤DNA连接酶；⑥SSB；它们的作用顺序是（ ） A: ②③⑥④①⑤； B: ④②①⑤⑥③； C: ④②⑥①③⑤； D: ②⑥④①③⑤ E: ④③①②⑤⑥；
- 3
真核生物DNA聚合酶中不具有3'→5'核酸外切酶活性的是: A: DNA pol δ B: DNA pol Ⅱ C: DNA pol γ D: DNA pol ε E: DNA pol α和β
- 4
DNA复制过程中,参与冈崎片段之间连接的酶有( ) A: RNase B: 连接酶 C: DNA pol I D: DNA pol II E: DNA pol III