2019高考生物二轮复习专题三遗传第3讲变异、育种与进化第Ⅰ课时基础自查——学生为主体抓牢主干以不变应万变课件.ppt

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2019高考生物二轮复习专题三遗传第3讲变异、育种与进化第Ⅰ课时基础自查——学生为主体抓牢主干以不变应万变课件.ppt_第1页
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第 3 讲,变异、育种与进化,第课时 基础自查 学生为主体抓牢主干,以不变应万变,串点成面自成体系,点点落实(一) 可遗传变异的类型及其比较,一过基础,对氨基酸序列的影响,影响范围,碱基对,不影响缺失位置前的序列,但影响缺失位置后的序列,大,缺失,不影响插入位置_的序列,但影响插入位置_的序列,大,增添,只改变_个氨基酸或不改变,小,替换,易位,交叉互换,比较,图示,非同源染色体,_基因,同源染色体,_基因,对象,基因 突变,不改变基因的质,但会改变基因的量或改变基因的_,染色体变异,不改变基因的质,也不改变基因的量,但改变基因间组合搭配方式,即改变_(注:转基因技术可改变基因的量),基因 重组,改变基因的质(基因结构改变,成为_),不改变基因的量,二过易错,三过小题,03,点点落实(二) 生物育种的原理与方法,一过基础,二过易错,三过小题,03,点点落实(三) 生物的进化,一过基础,二过易错,三过小题,03,谢,观,看,THANK YOU FOR WATCHING,谢,

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