胚胎巨细胞分裂新发现挑战教科书
科学家们揭示了一个巨大胚胎细胞分裂的新方式——不依赖于传统的“钱包环”来分裂细胞。研究人员通过研究鲑鱼胚胎发现，细胞并没有形成一个完全闭合的收缩环，而是使用了一个巧妙的“机械齿轮”系统。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-28 22:33 GMT+8（北京时间）
#细胞分裂 #胚胎发育 #鲑鱼
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