Observe the DNA Double Helix Structure. The letters A, C, G,
and T represent the bases which are acids that make up DNA. (Notice they come in
pairs; A is always with T and G is always with C).
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adenine (A) was once considered Vitamin B4.
guanine (G) first isolation was reported in 1844.
cytosine (C) was discovered in 1894.
thymine (T) also known as
5-methyluracil.
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James Watson and
Francis Crick presented
the structure of the DNA-helix in 1953. Nine years later, in
1962,
they shared the Nobel Prize in Physiology or Medicine with Maurice
Wilkins, for solving one of the most important of all biological riddles.
You can discover your own DNA structure through DNA testing at
Family Tree DNA.
They will analyze your paternal side, your maternal side and even help you find
where your family originated from.

DNA Double Helix
Structure back to previous page