A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).

Synonyms: 0, 9007-49-2, Double-Stranded DNA, DNA, Double Stranded, DNA, ds-DNA, Deoxyribonucleic Acid, DNA, Double-Stranded, Deoxyribonucleic acids, ds DNA