真核生物催化前导链合成的主要复制酶是 A．DNA—polα B．DNA polβ C

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问题单项选择题

真核生物催化前导链合成的主要复制酶是

A．DNA—polα

B．DNA polβ

C．DNA—polγ

D．DNA—polδ

E．DNA—polε

答案

参考答案：D

填空题

根据句意及首字母提示完成单词。

1. There are many animals in the z______.

2. What o______ things can you see in the picture?

3. The old man is f______ to us. We love him very much.

4. The little girl is very s______. She hides (躲藏) behind her mother.

5. Tom never (从不) does his homework, he is very l______.

问答题简答题

燃烧室旁路阀的作用是什么？