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    What is DNA?

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    DNA (deoxyribose nucleic acid) is life’s genetic code that tells the body how to function or what to look like. The DNA code is made up of 4 different chemical units called bases. The bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The code, if you were to read it, would look something like this:
    ...CGTAGCTTACTTTAGGCTAGCAAACGCATC....
    A gene is a section of genetic code that can be decoded by the cell to mean something. A single gene might be responsible for any aspect of your body's function or appearance, like making a certain protein, or the colour of your eyes.



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