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STRUCTURE OF DNA

The anatomy of DNA is illustrated by a appropriate handed bifold helix, with about 10 nucleotide pairs per circling turn. Each circling strand, composed of a amoroso phosphate courage and absorbed bases, is affiliated to a commutual fiber by hydrogen bonding (non- covalent) amid commutual bases, adenine (A) with thymine (T) and guanine (G) with cytosine (C).

Adenine and thymine are affiliated by two hydrogen bonds (non-covalent) while guanine and cytosine are affiliated by three.

This anatomy was aboriginal declared by James Watson and Francis Crick in 1953.

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