题目内容

与 CAP 位点结合的物质是：

A. RNA 聚合酶
B. 操纵子
C. 分解（代谢）物基因激活蛋白
D. 阻遏蛋白

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目前认为基因表达调控的主要环节是； A． B．C． D．翻译起始E．

A. 翻译后加工
B. 转录起始
C. 转录后加工
D．翻译起始

关于管家基因叙述错误的是：

A. 在生物个体的几乎所有细胞中持续表达
B. 在生物个体的几乎各生长阶段持续表达
C. 在一个物种的几乎所有个体中持续表达
D. 生在生物个体的其一生长阶段持续表达

简述基因表达调控的生物学意义？

It's getting colder by the minute.If we don't do something soon, We'll all 1 to death.Prince Hans... - Princess Anna is...Dead. What...?What happened to her?She was killed by Queen Elsa.Her own sister.At least we got to say our marriage 2...before she died in my arms.There can be no doubt now,Queen Elsa is a monster and we are all in 3danger.Prince Hans, Arendelle looks to you.With a heavy heart,I charge Queen Elsa of Arendelle with 4and sentence her to death.Hurry Up!She's dangerous. Move quickly and be careful.The Door not open!What is it, 5? Hey, watch it.What's wrong with you?I don't understand you when you talk like that.Ah! Stop it! Put me down!No, Sven! We're not going back!She's with her true love.What the...Anna!Come on,come on ,boy.