Chapter 1 Preparation of nucleic acid核酸：遗传信息的储存物质 脱氧核糖核酸：deoxyribonucleic acid, DNA 核糖核酸：ribonucleic acid, RNA 区别：第一节 天然DNA的制备（Preparation of DNA ） 一、DNA的组成与结构（ Composition and Structure of DNA）:A phosphate group linked by a phosphodiester bond to a pentose (a five-carbon sugar molecule)that in turn is linked to a nitrogen- and carbon-containing ring structure commonly referred to as a “base”.BasePentosePhosphate GroupNucleotide主要碱基的化学结构：结构：DNADNA解链温度（Tm ，melting point）DNA 分子杂 交(Hybridization of
