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20 September, 04:38

How many individual strands is DNA composed of?

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  1. 20 September, 07:08
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    DNA is a double helix, meaning there are two strands.

    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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