染色体变异的内容在高中生物教材中不同的章节先后出现,学生对于不同变异之间的区别掌握有一定的难度。从两个方面进行区分,抓住它们的关键不同点,使得相关概念学习更加容易。 Chromosome variation in high school biology textbooks in different chapters have appeared, the students have different degrees of understanding of the differences between a certain degree of difficulty. Distinguishing between two aspects and seizing their key differences makes it easier to learn concepts.