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对于遗传系谱判断分析题 ,一般学生感到分析复杂 ,判断较难。在教学中我总结出的判断方法 ,即肯定判断法与模糊判断法 ,学生用此方法 ,可以快速准确地作出判断。1 肯定判断法系谱中有双亲皆有病 ,他们的后代 (子女 )中出现无病的情况 (即双有后无 ) ,则肯定是显性遗传 ;在该系
For genetic pedigree analysis and analysis questions, the average student feels that the analysis is complicated and difficult to judge. In the teaching, I summed up the judging methods, that is, the affirmative judging method and the fuzzy judging method. Students can use this method to make judgments quickly and accurately. 1 In the family of affirmative judgments, if both parents are sick and their offspring (children) have disease-free conditions (ie, there are no both), then it is definitely a dominant inheritance;