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遗传学部分是历年高考的恒定考点,有关遗传学中的基因型分析与概率计算更是考查的主旋律,从近年的高考与调研试题来看,遗传学中的基因型分析和概率计算不仅涉及到遗传学和数学等学科中的基础知识,还涉及到有关基础知识的延伸和拓展,如“性别决定”、“从性遗传”、“基因互作”和“纯合或配子致死”等“非正常”现象,并且此部分是失分点的集中营。下面将遗传学中的部分“非正常”现象进行列举与例析,以期有拨开云雾之效。
Genetics part of the college entrance examination over the years constant test points, the genetics of genotyping and probabilistic calculation is the main test, from the recent college entrance examination and research questions, genetics genotyping and probabilistic calculation not only involves Genetics and mathematics and other basic knowledge, but also related to the extension and expansion of the basic knowledge, such as “gender decision ”, “from genetic”, “gene interaction ” and “homozygous Or gametogenic lethal ”, etc.“ abnormal ”phenomenon, and this part is the concentration camp lost points. The following part of genetics in the “abnormal” phenomenon cited and analysis, in order to have the effect of cloud.