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分析历年来各个地方的高考题,遗传一直是一个重点的考查内容,就题型而言,涉及到多种题型,以实验题,系谱分析题,计算题最为常见。在这些题目中,很多题涉及到显隐性性状的判断。显隐性性状的判断方法1:根据显隐性性状的概念来判断即相对性状的亲本杂交,若子代只显现亲本中的一个性状,则子代所显现出来的那个性状
Analysis of the various places over the years college entrance examination questions, genetic testing has always been a key content, the questions concerned, involves a variety of questions, with experimental questions, pedigree analysis questions, calculation of the most common. In these topics, many questions relate to the judgments of recessive traits. Judgment of the recessive trait Method 1: Judging from the concept of the recessive trait that is the cross of the parental trait of the relative trait, if the offspring shows only one trait in the parent, then the trait revealed by the offspring