DNA, or deoxyribonucleic acid, is a long molecule that contains our unique genetic code. Like a recipe book, it holds the instructions for making all the proteins in our bodies.
Deoxyribonucleic acid contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information. It is often compared to a blueprint, since it contains the instructions to construct other components of the cell, such as proteins.
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