What is DNA?

DNA is deoxyribonucleic acid. The form of the DNA molecule is rather unusual - a double helix. It can be detected inside any living cell. DNA consists of long chains of saccharides and phosphates, connected by four types of "bases" - adenine, cytosine, guanine and thymine. The sequence in which these "foundations" are located determines the activity of each cell and the whole organism as a whole.

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