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Dna和rna在多个方面存在显著差异： 组成单位：dna的基本组成单位是 脱氧核苷酸，而rna的基本组成单位是 核糖核苷酸。 组成碱基：dna的组成碱基是a、t、g、c，而rna的组成碱. Dna双螺旋模型究竟是怎样诞生的，这中间又经历了怎样的传奇？ 让我们一起走进“dna之父”沃森的传奇人生。 1 一个痴迷观察鸟类的孩子 诸位，你如果参加了电视台举办的智力竞赛，获得了最高奖，奖. Dna 是 deoxyribonucleic acid 的缩写，中文名称为脱氧核糖核酸。它是一种分子，由两条长长的链组成，每条链由许多核苷酸组成。这些核苷酸按照特定的顺序排列，形成了 dna 的遗传密码。dna 是所.
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