单项选择题

A．DNA-polα B．DNA-polβ
C．DNA-polγ D．DNA-polδ
E．DNA-polε
在真核生物复制过程中起校读、修复和填补缺口的DNA聚合酶是
A．
B．
C．
D．
E．

A.DNA-polα
B.DNA-polβ
C.DNA-polγ
D.DNA-polδ
E.DNA-polε
在真核生物复制过程中起校读、修复和填补缺口的DNA聚合酶是
A．

你可能感兴趣的试题

单项选择题

听力原文：M: Uh, where am 17 Hum...
W: Excuse me. Do you need any help?
M: I ... I'm just looking ... well, I want to go to the Science Museum, but I've been lost for the past hour.
W: Ah, just press this button. And from here, it's a dollar fifty.
M: OK.
W: Then, get on the train at platform. No. 4.
M: Alright. Oh, and how often do the trains come around this time of day?
W: Usually, they come about every six minutes.
M: And where do I get off the train?
W: Get off at State Street Station, three stops from here.
M: I got it now. Thanks for your help.
W: No problem. Good luck.
(8)
A．To the Science Museum.
B．To the Natural History Museum.
C．To the Art Museum.
D．To the Chemistry Museum.

A...
W:
B...
C...
D.
W:
E.
M:
F.
W:
G.
M:
H.
M:
I.
M:
J.
W:
K.
(8)
A．To
L.
B．To
M.
C．To
N.
D．To
O.

单项选择题

戏称自己为“新诗老祖宗”的是 ( )

A.胡适
B．鲁讯
C．郭沫若
D．李大钊