Interaction of nucleic acid with various substances is closely related t o detecting the structure and function of nucleic acid,which i s an important way of discovering bio logical function of nucleic acid and action mechanism of some dru gs.

• 核酸与各类物质的相互作用与探测核酸的结构与功能密切相关是揭示核酸的生物功能和一些药物的作用机制的重要途径。