Watson-Crick model

noun Biochemistry.

a widely accepted model for the three-dimensional structure of DNA, featuring a double-helix configuration for the molecule's two hydrogen-bonded complementary polynucleotide strands.

Origin:
1955–60; named after J. D. Watson and F. H. C. Crick

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Medical Dictionary

Watson-Crick model n.
A three-dimensional model of the DNA molecule, consisting of two polynucleotide strands wound in the form of a double helix and joined in a ladderlike fashion by hydrogen bonds between the purine and pyrimidine bases.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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