在遗传课的教学中,验证分离律的方法很多。现行高中生物课本中采用两种自交系杂交的直观实验法,观察后代性状分离的现象。这种方法因受季节的因素限制,在短时间内得不到预期的实验结果,容易与课堂教学脱节,实际在多数中学得不到应有的重视。我们在此介绍一种在实验课能进行的遗传实验——P.T.C尝味能力的测定和分析。 In the teaching of genetics, there are many ways to verify the law of separation. The present high school biology textbook adopts the intuitionistic experiment method of two inbred lines hybridization to observe the phenomenon that the offspring traits are separated. Due to seasonal factors, this method can not get the expected experimental results in a short time and is easy to be out of step with classroom teaching. In fact, most secondary schools do not receive due attention. Here we introduce a kind of genetic experiment that can be carried out in the experimental class - the determination and analysis of taste of PT.T.C.