[[Image:799.gif|right|thumb|300px]]
'''Deoxyribonucleic acid''' (DNA) is a chemical inside [[cell]]s which carries the hereditary information. It is a molecular [[polymer]] formed of [[nucleotide|deoxyribonucleotides]]. All organisms use DNA as their hereditary material. [[Offspring]] of [[sexually reproducingHuman reproduction|Sexual_reproductionSexual reproduction]] [[organisms|Organism]] contain DNA from both parents.
==Structure==