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11 February, 04:44

Why was DNA created and what makes up DNA

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  1. 11 February, 04:58
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    DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
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