V2EX pcr

PCR

释义 Definition(中文)

PCRpolymerase chain reaction 的缩写,中文常译为聚合酶链式反应:一种在体外快速扩增(复制)特定DNA片段的实验技术,广泛用于医学检测、遗传学研究、法医学鉴定等。(在某些场景也可扩增RNA,但通常需先逆转录成DNA。)

发音 Pronunciation(IPA)

/pi si r/

例句 Examples

PCR can detect a virus from a small sample.
PCR可以从很小的样本中检测出病毒。

After extracting DNA, the lab used PCR to amplify a target gene, which was then sequenced to confirm the mutation.
提取DNA后,实验室用PCR扩增目标基因,随后进行测序以确认该突变。

词源 Etymology(中文)

PCR 来自英文术语 polymerase chain reaction(聚合酶 + 链式 + 反应)。该方法在20世纪80年代由生物化学家 Kary Mullis 推广并使其成为现代分子生物学的关键技术之一;“chain reaction(链式反应)”强调其通过循环步骤实现指数级扩增的特点。

相关词 Related Words

文学与名作中的出现 Literary Works

  • The Gene: An Intimate History(Siddhartha Mukherjee)讨论现代遗传学工具时提及PCR等技术。
  • Genome: The Autobiography of a Species in 23 Chapters(Matt Ridley)在讲述基因与分子生物学进展时会出现PCR相关内容。
  • Molecular Biology of the Cell(Alberts 等)经典教材,系统介绍PCR在分子生物学实验中的应用与原理。
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