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本文介绍一个中学可做的简易实验，用课堂演示或学生实验来提取动物肝脏中的ＤＮＡ。动物组织细胞中的ＤＮＡ和ＲＮＡ大部分与蛋白质结合成核蛋白。在１～２ｍｏｌ／Ｌ的浓氯化钠溶液中，ＤＮＡ核蛋白的溶解度很大，ＲＮＡ核蛋白的溶解度很小；而在０．１４ｍｏｌ／Ｌ的稀...
This article describes a simple experiment that can be done in high school to extract DNA from animal livers using classroom demonstrations or student experiments. Most of the DNA and RNA in animal tissue cells bind to proteins and nucleoproteins. In 1 ~ 2mol / L concentrated sodium chloride solution, DNA nuclear protein solubility, RNA nuclear protein solubility is very small; and in 0.14mol / L ...