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2018_2019学年高中生物3.1DNA是主要的遗传物质（知识框架）艾弗里的实验素材新人教版必修2.pptx

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艾弗里的实验,（1）实验过程及现象,（2）结论：只有加入DNA，R型细菌才能转化为S型细菌，即DNA是使R型细菌产生稳定遗传变化的物质。,S型活菌,DNA+R型活菌,R型活菌,蛋白质+R型活菌,荚膜多糖+R型活菌,DNA+DNA酶+R型活菌,R型活菌,R型活菌,R型活菌,S型活菌,

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