| 单词 | prophase |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔metaphase〕The stage of mitosis and meiosis, following prophase and preceding anaphase, during which the chromosomes are aligned along the metaphase plate.中期：细胞核的有丝分裂和减数分裂阶段，发生于前期之后和后期之前，在此期间内染色体在中期板平面上定向排列美国传统〔pachytene〕The third stage of the prophase of meiosis during which the homologous chromosomes become short and thick and divide into four distinct chromatids.粗线期：在同周期的染色体群变短变粗并分裂为四个不同的染色单体过程中减数分裂前期的第三个阶段美国传统〔spireme〕The tangle of filaments that appears at the beginning of the prophase portion of meiosis or mitosis.染色质缠绕：减数分裂或有丝分裂前期开始时出现的细丝缠绕美国传统〔synapsis〕The side-by-side association of homologous paternal and maternal chromosomes during the early prophase of meiosis.接合，联合：在成熟分裂的前期时父方染色体与母方同源染色体的等同的联会美国传统〔synaptinemal complex〕A ribbonlike structure consisting of three protein components and extending across the region of synapsed chromosomes during the prophase of meiosis.接合丝复合物，联合丝复合物：一种带状构造体，由三个蛋白质要素组成，在成熟分裂的前期扩展到已联合的染色体之外美国传统〔tetrad〕A group of four chromatids formed from each of a pair of homologous chromosomes that split longitudinally during the prophase of meiosis.四分体：一组来自减数分裂中相互垂直分裂的一对同源染色体的四个染色单体美国传统〔zygotene〕The stage in prophase of meiosis during which homologous chromosomes become paired. 偶线期：减数分裂的前期阶段，在此期间异体同型的染色体配对美国传统 |
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