高中《生物》的遗传学问题里，有关概率的计算是一个相对较难理解的内容。我们所 遇 到几乎所有有关概率的问题，都是围绕基因的分离规律和自由组合规律来展开的。教材在 分析和阐述这两个基本规律的时候，强调了形成配子时等位基因分离以及非等位基因自由组 合这一实质，重点 In the genetics problem of “biology” in high school, the calculation of the probability is a relatively difficult content to understand. The problems that we have encountered with almost all of the probabilities are centered on the law of the separation of genes and the law of free combinations. In analyzing and expounding these two basic laws, the textbook emphasizes the essence of the separation of alleles and the non-allelic free combination when forming gametes.