脱氧核糖核酸Deoxyribonucleic acid 的简称,详细解释如下,供参考：
A nucleic acid that carries the genetic information in the cell and is capable of self-replication and synthesis of RNA.DNA consists of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine.The sequence of nucleotides determines individual hereditary characteristics.
脱氧核糖核酸：一种在细胞中带有基因信息的核酸,能够自行复制并合成核糖核酸,DNA由两个核甙酸长链组成,这两个核甙酸链交结成一个双螺旋体