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DNA double helix
- Peter Artymiuk
- Digital Images
- Online
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Attribution 4.0 International (CC BY 4.0)
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Credit: DNA double helix. Peter Artymiuk. Attribution 4.0 International (CC BY 4.0)
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Description
View of a short piece of a DNA double helix. This
is a molecular model generated from X-ray
diffraction data. Carbon atoms are shown in white,
nitrogen in blue, oxygen in red and phosphorus in
purple. Hydrogen atoms are not shown. This is the
standard double helical "B" form of DNA solved by
Watson and Crick. The two sugar phosphate
backbones are linked by the interaction of the
base pairs - C with G and A with T. This piece of
DNA is approx. 12 bp long. A single gene is often
tens of thousands of base pairs long.