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有丝分裂是生物学科的一个重点,也是一个难点。重要在于它与必修二中的有性生殖、减数分裂及遗传与变异有很大的关系。难在它的变化比较复杂且抽象。一、有丝分裂是教学的重点与难点细胞分裂是一切具有细胞结构的生物体生长、发育和繁殖的基础,对于生物体维持生命活动具有重要意义。有丝分裂是细胞分裂的主要方式。细胞周期包括分裂间期和分裂期。处于细胞分裂间期的细胞不是静止的,在其内部进行着复杂而旺盛的生理变化
Mitosis is a biological focus, but also a difficult point. The important point is that it has a great relationship with sexual reproduction, meiosis and inheritance and mutation in Compulsory II. Hard to change in its more complicated and abstract. First, mitosis is the teaching of the key and difficult Cell division is all the cells with the structure of the organism growth, development and reproduction of the foundation for the life of organisms to maintain the activities of great significance. Mitosis is the main way of cell division. The cell cycle includes interphase and division. Cells that are in the interphase of the cell are not quiescent and undergo complex and robust physiological changes in their interior