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【单选题】
Do you ___ her novels as serious literature or as mere entertainment?
A. classify
B. notify
C. simplify
D. justify
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答案
A
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反转录过程中需要的酶是___
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关于DNA复制中连接酶的叙述错误的是___
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【单选题】
DNA复制时,子代DNA的合成方式是___
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关于反转录酶的叙述错误的是___
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【单选题】
DNA复制发生在细胞周期的___
A. G1期
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【单选题】
与DNA修复过程缺陷有关的疾病是___
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【单选题】
在DNA生物合成中,具有催化RNA指导的DNA聚合反应,RNA水解及DNA指导的DNA聚合反应三种功能的酶是___
A. DNA 聚合酶
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D. DNA水解酶
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【单选题】
DNA复制与转录过程的许多异同点中,描述错误的是___
A. 转录是只有一条DNA链作为模板,而复制时两条DNA链均可为模板链
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【单选题】
关于大肠杆菌DNA聚合酶Ⅲ说法错误的是___
A. 催化dNTP连接到DNA片段的5'羟基末端
B. 催化dNTP连接到引物链上
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D. 不具5'→3'外切酶活性
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【单选题】
生物遗传信息传递的中心法则中不包括___
A. DNA→DNA
B. DNA→RNA
C. RNA→DNA
D. RNA→RNA
E. 蛋白质→RMA
【单选题】
生物遗传信息传递的中心法则是___
A. 以DNA为中心
B. 以RNA为中心
C. 以蛋白质为中心
D. 以复制为中心
E. 以转录为中心
【单选题】
关于DNA合成的叙述,正确的是___
A. DNA的生物合成即DNA的半保留复制
B. DNA的生物合成必须以DNA为模板
C. DNA的生物合成必须以DNA指导的DNA聚合酶催化
D. DNA的生物合成是半不连续复制
E. DNA的生物合成包括DNA的半保留复制、DNA的修复合成和反转录
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