Mitosis occurs in five stages: prophase, prometaphase, metaphase, anaphase and telophase. The exact role FoxO3 in the regulation of cardiac regeneration remains unclear. Here, the authors show ...

减数第一次分裂后期（Anaphase I）形成明显的细胞器带，分隔两个子核，且细胞器丰富，这一细胞质中细胞器规律性变化的现象被称为细胞质重组。花粉壁在单核晚期形成，双核小孢子期成熟，且花粉存在败育现象。这些结果首次揭示了大麻叶千里光发育过程中小 ...