V2EX anaphase

Anaphase

释义 Definition

(生物)后期:细胞分裂(有丝分裂或减数分裂)中,染色体(或姐妹染色单体)分离并向细胞两极移动的阶段。常见还可指“有丝分裂后期”“减数分裂后期”(后者分为后期 I 与后期 II)。

发音 Pronunciation

/nfez/

例句 Examples

Anaphase is the stage when chromosomes move to opposite poles.
后期是染色体向细胞两极移动的阶段。

During anaphase, the spindle fibers shorten, pulling sister chromatids apart so each daughter cell receives an identical set of genetic material.
在后期,纺锤丝缩短并拉开姐妹染色单体,从而使每个子细胞获得一套相同的遗传物质。

词源 Etymology

anaphase 来自希腊语构词:**ana-**(“向上、再次”)+ -phase(“阶段”)。用于描述细胞分裂过程中“进入下一阶段、向两极分开推进”的这一关键时期。

相关词 Related Words

文学作品 Literary Works

  • H. G. Wells The Island of Doctor Moreau(书中涉及生物学与生理学讨论时常见此类细胞学术语)
  • Richard Dawkins The Selfish Gene(在解释遗传与复制相关概念的科普语境中可能出现细胞分裂术语)
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