染色体上相邻基因之间有区分标志，DNA上启动子和终止子及之间的核苷酸序列为一个基因。启动子和终止子都是特定的核苷酸序列。
因为进化的标志印遍了我们的染色体。
Because the marks of evolution are literally all over our chromosome.
黄颡鱼初级精母细胞的前期出现联会复合体，应是同源染色体之间进行同源基因交换的标志。
The prophase of primary spermatocyte would appear synaptonemal complex, which should been the symbol that the homologous chromosome carried through the change of homologous gene.
特定的染色体和融合基因可作为白血病的标志物，对白血病的诊断、预后估计、监测治疗和微小残留白血病等方面具有一定的价值。
The specific chromosome and fusion gene are regarded as marker of leukemia, and helpful in leukemia diagnosis, evaluating prognosis, monitoring of treatment and minima residual leukemia.
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