V2EX prophase

Prophase

定义 (Definition)

前期:细胞分裂(有丝分裂或减数分裂)开始时的阶段,染色体逐渐凝缩变粗变短并变得可见;核膜通常开始解体,纺锤体开始形成。(在减数分裂中还可细分为前期 I、前期 II。)

发音 (Pronunciation)

/profez/

例句 (Examples)

Prophase is when chromosomes become visible under the microscope.
前期是染色体在显微镜下变得可见的阶段。

During prophase, the nuclear envelope breaks down as the spindle apparatus begins to organize, preparing the cell for chromosome separation.
在前期,核膜开始解体,同时纺锤体装置开始组装,为染色体分离做准备。

词源 (Etymology)

prophase 来自希腊语词根 **pro-**(“在前、先”)+ phasis(“显现、出现”),字面含义接近“在前面出现的阶段”,对应细胞分裂中“最先显现变化”的时期。

相关词 (Related Words)

文学与著名作品用例 (Literary & Notable Works)

  • Molecular Biology of the Cell(Alberts 等):在细胞周期与有丝分裂章节中系统讲解 prophase 的关键事件。
  • Campbell Biology(Urry 等):在“细胞分裂/有丝分裂”相关章节中以图示与文字描述 prophase 的特征与顺序。
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