【单选题】【消耗次数:1】
原核生物参与转录起始的酶是
解链酶
引物酶
RNA聚合酶III
RNA聚合酶全酶
RNA聚合酶核心酶
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相关题目
【单选题】 原核生物识别DNA模板上转录起始点的是RNA聚合酶的
①  全酶
②  核心酶
③  σ亚基
④  α亚基
【判断题】 RNA聚合酶缺乏核酸外切酶活性,不具备校对功能,因此RNA转录的保真度比DNA复制要低得多().
①  正确
②  错误
【单选题】 只在RNA转录合成时需要的酶是
①  RNA聚合酶
②  DNA聚合酶I
③  DNA聚合酶III
④  逆转录酶
⑤  解链酶
【单选题】 逆转录酶是一类:
①  RNA指导的DNA聚合酶
②  DNA指导的RNA聚合酶
③  DNA指导的DNA聚合酶
④  RNA指导的RNA聚合酶
【单选题】 下列哪种酶是脂肪分解的限速酶
①  蛋白激酶
②  甘油一酯脂肪酶
③  甘油二酯脂肪酶
④  激素敏感脂肪酶
⑤  甘油激酶
【多选题】 逆转录过程中不需要的酶是().
①  A.DNA指导的DNA聚合酶
②  B.RNA指导的DNA聚合酶
③  C.RNA指导的RNA聚合酶
④  D.DNA指导的RNA聚合酶
【单选题】 下列哪项是修饰酶()
①  碱性磷酸酶
②  DNA聚合酶Ⅰ
③  Klenow片段
④  逆转录酶
⑤  TaqDNA聚合酶
【判断题】 渗透酶属于诱导酶,而其它种类的酶往往属于组成酶。
①  正确
②  错误
【单选题】 酶活性是指
①  酶所催化的反应
②  无活性的酶原转变为有活性的酶
③  酶与底物的结合力
④  酶的催化能力
【单选题】 酮体生成的关键酶是
①  HMGCoA合成酶
②  HMGCoA还原酶
③  脂酰辅酶A合成酶
④  丙酮酸羧化酶
随机题目
【单选题】 Someone called me up in the middle of the night, but they hung up _____ I could answer the phone.
①  as
②  since
③  until
④  before
【单选题】 Is the hotel _____ offered you a job _____ you stayed the first time you arrived here?
①  which; where
②  the one; in which
③  where; that
④  the one that; which
【单选题】 —Have you heard about that fire in the market?—Yes, fortunately no one __________.
①  hurt
②  was hurt
③  has hurt
④  had been hurt
【判断题】 It is not so cold as yesterday.
①  正确
②  错误
【判断题】 It is raining this morning.
①  正确
②  错误
【单选题】 When I get to the top of the building, the sun [填空].
①  shine
②  shines
③  is shining
④  was shining
【判断题】 Amy is more stronger than that girl.
①  正确
②  错误
【单选题】 To answer correctly is more important than ____.
①  that you finish quickly
②  finishing quickly
③  to finish quickly
④  finish quickly
【单选题】 There will [填空] a wonderful exhibition tomorrow.
①  is
②  are
③  be
④  being
【单选题】 They are interested [填空] earning money.
①  in
②  on
③  at
④  for