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double helix
Double Helix
The double helix of the DNA is shown along with details of how the bases, sugars and phosphates connect to form the structure of the molecule. DNA is a double-stranded molecule twisted into a helix (think of a spiral staircase). Each spiraling strand, comprised of a
sugar-phosphate backbone and attached bases, is connected to a complementary strand by non-covalent hydrogen bonding between paired bases. (Watson, 1968) The bases are adenine (A), thymine (T), cytosine (…
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…Crick, F. H. C. 1962. The genetic code. Scientific American 207(4):66-74.
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James D. Watson, The Double Helix, (New York:Atheneum, 1968)
Louis Levine, "DNA Replication," Encarta 97 (1996)
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