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１９９４年我们采用直接低渗法制备正常人精液中初级精母细胞染色体，发现其分裂相显示了有很长“尾状纤维结构”的大Ｘ染色体，Ｙ染色体也显示了同样的结构［１］。随后又采用体外培养法对人精液进行长期培养，在培养４８～６２天时又观察到大Ｘ、Ｙ染色体从出现到聚缩为...
In 1994, we used the direct hypotonic method to prepare primary spermatocyte chromosomes in normal human semen and found that their split phase showed a large X chromosome with a long “tail fiber structure” and the Y chromosome also showed the same structure [1] . Followed by in vitro culture of human semen for long-term culture, 48 to 62 days in culture and then observed in large X, Y chromosome from appearance to shrinkage ...