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    Genetic 342 A&B Kenneth G Wilson Professory of Botany  | 
  
Chemical Structures known by Watson and Crick prior to publication of the double helix.

The Bases Purines:

The Bases - Pyrimidines :


Tides C&T

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    This is our friend Oliver the parrotlet, Oliver is a true parrot, the smallest in the world.  |