the chemical in the cells of animals and plants that carries genetic information and is a type of nucleic acid (the abbreviation for ‘deoxyribonucleic acid’) 脱氧核糖核酸（全写为 deoxyribonucleic acid，动植物的细胞中带有基因信息的化学物质）
A DNA test confirmed the suspect had been at the scene of the crime.脱氧核糖核酸测试证实了嫌疑人在犯罪现场。