V2EX euploidy

Euploidy

定义 Definition

euploidy(整倍性)指细胞或个体拥有完整的染色体组(整套倍数),例如二倍体(2n)、三倍体(3n)等;染色体数目的变化是以“整套”为单位。它常与非整倍性(aneuploidy)对比:后者是“多或少了某几条染色体”,不是整套变化。

发音 Pronunciation (IPA)

/jupldi/

例句 Examples

Many plants can survive with euploidy, such as triploidy or tetraploidy.
许多植物能在整倍性状态下存活,例如三倍体或四倍体。

Researchers compared euploidy and aneuploidy to understand how chromosome number affects development and fertility.
研究人员比较整倍性与非整倍性,以理解染色体数目如何影响发育与生育能力。

词源 Etymology

来自希腊语词根:eu-(“良好、正常”)+ -ploidy(与“倍数/染色体组数目”相关,源自 ploos/ploos “倍数、成倍”这一类词根的现代构词)。整体含义可理解为“(染色体组数)处于完整、成套的状态”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • 《Campbell Biology》(Campbell 等,生物学教材中在遗传与染色体章节讨论倍性与整倍性/非整倍性)
  • 《Molecular Biology of the Cell》(Alberts 等,细胞生物学教材中涉及染色体数目与细胞周期、基因组稳定性)
  • 《The Cell: A Molecular Approach》(Cooper & Hausman,讲解染色体与基因组变化时常出现 euploidy/aneuploidy 对照用法)
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