Did you mean DNA?
DNA
abbreviation
°deoxyribonucleic acid, the genetic material of nearly all forms of life.
°Defense Nuclear Agency.
noun
°A substance in living beings which determines their form, and can be used to uniquely identify a person.
°A biopolymer of deoxyribonucleic acids (a type of nucleic acid) that has four different chemical groups, called bases: adenine, guanine, cytosine, and thymine.