Watson-Crick Model Definition
 wätsən-krĭk 
    noun
  
 A three-dimensional model of the DNA molecule, consisting of two complementary 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.
 American Heritage Medicine 
Origin of Watson-Crick Model
After James Dewey Watson Francis Henry Compton Crick
From American Heritage Dictionary of the English Language, 5th Edition
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