Deoxyribonucleic acid (DNA) is the carrier of genetic information and the material basis of gene expression. It has very important functions in life processes, such as breeding, heredity and aberrance.

• 脱氧核糖核酸(deoxyribonucleic acid,DNA)是遗传信息的携带者和基因表达的物质基础,在生物体的繁育、遗传和变异等生命过程中起着极为重要的作用。