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对高考题的解析、研读与讨论已成为生物学教师关注的热点,在这个过程中或多或少会有一些考题给我们以启示,笔者在研读2009年山东理综卷第7题时有如下感受。1题目人类常色体上β-珠蛋白基因(A+),既有显性突变(A),又有隐性突变(a),突变均可导致地中海贫血。一对皆患地中海盆血的?
The analysis, research and discussion of the college entrance examination questions have become the focus of biology teachers’ hot spots. In this process, there will be more or less some questions for us to enlighten us. The author in the study of Shandong Science Volume 2009 Question 7 as follows Feel 1 topic human chromatoid β-globin gene (A +), both dominant (A) and recessive mutations (a), mutations can lead to thalassemia. A pair of Mediterranean pots are suffering from blood?