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BIOLOGYWHAT IS DNA?
DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms.
Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria .
The information in DNA is stored as a code made up of four chemical bases:
ADENIN (A)
GUANINE (G)
THYMINE (T)
CYTOSINEN (C)