V2EX g1

G1

释义 Definition

G1 是一个常见缩写,字面意思是“G + 1”。在不同语境中含义不同;最常见的一种用法是在生物学中指细胞周期的 G1 期(Gap 1 phase,第一间期),即细胞在 DNA 复制(S 期)之前进行生长、合成物质并准备复制的阶段。
(在其他领域也可指 Generation 1(第一代)Grade 1(一级赛)、或某些系统里的“第1组/第1档”等。)

例句 Examples

The cells remain in G1 before they start copying their DNA.
细胞在开始复制 DNA 之前会停留在 G1 期。

After the drug treatment, many cells were arrested in G1, which reduced overall cell division.
药物处理后,许多细胞被阻滞在 G1 期,从而降低了整体细胞分裂。

发音 Pronunciation (IPA)

/di wn/

词源 Etymology

G1 属于字母+数字的科学与技术记号体系。生物学里的 G 来自 gap(“间隙/间期”),用来标记细胞周期中两个关键事件之间的阶段;1 表示第一段间期(在 S 期之前)。后来这种“G1/G2”的标记方式被广泛沿用到教材与科研写作中。

相关词 Related Words

文学与著作 Literary Works

  • 《Molecular Biology of the Cell》(Alberts 等):细胞周期章节中频繁使用 G1(如 G1/S checkpoint 等表述)。
  • 《Campbell Biology》(Campbell 等):在细胞分裂与细胞周期图示中常见 G1 标记。
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