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高中生物新课程选修(1)专题(5)DNA和蛋白质技术中有DNA的粗提取与鉴定这个实验,在做这个实验时,好多老师都认为该实验繁琐、复杂,做不做无所谓,有的用光盘给学生看一下实验过程或简单讲一下就算过去了.我却不这样认为,我觉得这个实验一定要让学生做,而且必须认认真真踏踏实实地做,只有通过做这个实验学生才能明白,了解课堂上老师所讲生物的遗传物质究竟是怎样一种物质,具有什么特点等.一、实验前相关溶液的配备
High school biology new course elective (1) topic (5) DNA and protein technology in the rough DNA extraction and identification of this experiment, in doing this experiment, many teachers agree that the experiment cumbersome, complex, do not do not matter, some CD-ROM to students to see the experimental process or simply talk about even passed, but I do not think so, I think this experiment must allow students to do, and must be honest and do it, only through this experiment students can understand , To understand what class of biological substances in the class teacher talk about what kind of material, what characteristics, etc. First, before the experiment with the solution