论文部分内容阅读
高中生物教材中,在讲到自由组合规律F_1的遗传时,利用遗传图解,展示了F_1雌雄配子各4种的16种结合方式,统计出F_2计有基因型9种,表现型4种。这种科学的严密的方法是初学者的必须知道的,缺点是统计起来比较繁琐,难于记忆。贵刊89年第2期林祖荣老师对遗传表格图解进行剖析,这有助于初学者找到各种基因型和表现型的规律性分布是有意义的。但是,这种方法需先画出表格图解,并进行统计,仍然比较繁琐、费时较多。有没有更简便的方法迅速地找到各种基因型和表现型呢?
In the high school biology textbooks, when referring to the inheritance of the free combination rule F_1, 16 combinations of F_1 male and female gametes were demonstrated using genetic maps. There were 9 genotypes and 4 phenotypes in F_2 counts. This rigorous method of science is a must for beginners. The disadvantage is that it is cumbersome and difficult to remember. In the 2nd issue of your magazine, Professor Lin Zurong analyzed the genetic table schema. It is useful for beginners to find the regular distribution of various genotypes and phenotypes. However, this method needs to draw a table diagram first, and statistics, still more cumbersome and time-consuming. Is there an easier way to quickly find a variety of genotypes and phenotypes?