- the spiral arrangement of the two complementary strands of DNA.
Origin of double helix
First recorded in 1953; term introduced by J.D. Watson and F.H.C. Crick
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- biochem the form of the molecular structure of DNA, consisting of two helical polynucleotide chains linked by hydrogen bonds and coiled around the same axis
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- The coiled structure of a double-stranded DNA molecule in which strands linked by hydrogen bonds form a spiral configuration.DNA helix Watson-Crick helix
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- The three-dimensional structure of double-stranded DNA, in which polymeric nucleotide strands whose complementary nitrogen bases are linked by hydrogen bonds form a helical configuration. The two DNA strands are oriented in opposite directions.
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