Deoxyribonucleic acid
The full form of DNA is deoxyribonucleic acid. DNA is a molecule that carries the genetic instructions used in the development and function of all living organisms and some viruses. It is a double-stranded, helical molecule made up of nucleotide units, each of which contains a sugar, a phosphate group, and a nitrogenous base (adenine, guanine, cytosine, or thymine). The sequence of these bases determines the genetic information that is stored in DNA, and this information is passed down from one generation to the next through the process of reproduction.
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