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BonnienZip BonnienZip
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6 years ago
In the WatsonCrick model of DNA structure, the polynucleotide chains ____.
 
  a. are of unequal length
  b. are arranged with the bases forming the backbone of the helix
   c. form covalent bonds between uracil and adenine
  d. are oriented in the same direction
 
   e. are oriented in opposite directions
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