The Double Helix

The double helix of DNA has these features:

This structure of DNA was worked out by Francis Crick and James D. Watson in 1953. It revealed how DNA — the molecule that Avery had shown was the physical substance of the genes [Link] — could be replicated and so passed on from generation to generation. For this epochal work, they shared a Nobel Prize in 1962.

External Link
Link to John Kyrk's animations showing the structure of DNA.
Please let me know by e-mail if you find a broken link in my pages.)

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21 February 2011