What does DNA look like?

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DNA is very long and looks like a ladder that's been twisted. Its shape is referred to as a double helix. DNA from all living things contains the same chemicals, and only the order and amount vary.
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DNA looks like an extremely long twisted ladder shape that is called a double helix. The sides of the ladder are a correlated chain of irregular sugar and phosphate molecules with four bases which are adenine (A), thymine (T), guanine (G) and cytosine (C).
DNA occurs in a double helix shape that looks like a ladder that has been twisted into a coil or spring. Did you know that DNA for every organism is exactly the same? It's just the ordering of the molecules that makes us a human instead of a tree (or other organism). You can find more information here: http://www.biotechnologyonline.gov.au/biotec/dnalook.html
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