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The stuff of life

DNA, or deoxyribonucleic acid, is found in almost every cell inside your body. There's a whopping 1.8 metres of the stuff packed into each tiny cell. Your DNA contains all the information that you need to grow from a fertilised egg into a human being.

A gene is a section of DNA that contains the instructions for producing a particular protein. Your DNA contains around 25,000 genes.

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Image: SSPL
    Background image: SSPL

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