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关于聚合酶链反应(PCR)的叙述错误的是

单选题
2022-04-02 11:46
A、PCR技术是一种体外DNA扩增技术
B、PCR技术能够快速特异地扩增任何目的基因或DNA
C、PCR方法进行的基因扩增过程类似于体内DNA的复制
D、PCR方法需要特定的引物
E、PCR技术需要在恒温环境进行
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正确答案
E

试题解析
PCR是一种在体外由引物介导的DNA扩增技术,其过程类似于体内DNA的复制过程。PCR全过程包括DNA模板升温变性、模板与引物结合(降温退火)、引物延伸(DNA聚合酶的最适温度)三个不断重复的过程。

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