dna or deoxyribonucleic acid is a double helix chains structure formed by base pairs attached to a sugar phosphate backbone

adenine atom backbone base bio biochemistry biology biotechnology body cell chain chemical chemistry chromosome clone code cytosine deoxyribonucleic acid digital dna element evolution gene genetic genome guanine health helix human lab laboratory life medical medicine micro microbiology microscopic model molecule pair research science scientific spiral structure study sugar symbol technology thymine