在解决有关生物性状的遗传题时,往往要首先判 断有关遗传性状的显隐性,然后才能进行相关计算。下 面就简要归纳一下判断遗传性状显隐性的方法。 1、紧扣定义法。根据教材中有关显性性状和 隐性性状的定义,具有一对相对性状的亲本杂交, 后代若只表现为一种性状,则表现出来的那个亲 本的性状为显性性状,未表现出来的那个亲本的 性状为隐性性状。例如黄色圆粒豌豆和绿色皱粒 豌豆,F1若全表现为黄色圆粒,则黄色与绿色这一 When solving genetic problems related to biological traits, it is often necessary to first determine the apparent recessiveness of the relevant genetic traits before making relevant calculations. Here’s a brief summary of the methods used to determine hereditary traits. 1, closely linked to the definition of law. According to the definition of dominant traits and recessive traits in a textbook, parents with a pair of relative traits are crossed. If the offspring only shows one trait, the parent trait shown is a dominant trait, which is not shown. The trait of the parent is a recessive trait. For example, yellow round grain peas and green wrinkle grain peas. If F1 is full of yellow round grains, yellow and green