1背景细胞增殖是生物体生长、发育、繁殖和遗传的基础。原核细胞的增殖方式是二分裂,真核细胞的增殖方式有无丝分裂、有丝分裂和减数分裂。而减数分裂是特殊的有丝分裂,它与基因的表达、DNA的复制、遗传定律、生物变异等密切相关,既是教学的重点和难点,又是历年高考的热点。依据该考点命制的试题常以表格、曲线和图形为载体,考查学生获取、分析信息的能力。因此,在复习中要善于抓住一条主线 1 Background Cell proliferation is the basis of the organism’s growth, development, reproduction and inheritance. Proliferation of prokaryotic cells is the second division, eukaryotic proliferation of mitotic, mitotic and meiosis. However, meiosis is a special mitosis. It is closely related to gene expression, DNA replication, genetic laws and biological variation. It is not only the focus and difficulty of teaching but also the hot spot of college entrance examination over the years. The test questions based on the test center often form, curve and graphics as a carrier, examine the ability of students to obtain, analyze information. Therefore, in the review should be good at seizing a main line