Biology Forum › Molecular Biology › a question

last updated by MrMistery 15 years, 3 months ago
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    • January 3, 2009 at 5:18 pm #10681
      prateeiik
      Participant

      Does guanine have two binding sites as compared to the other nitrogenous bases??
      Please confirm!!

    • January 3, 2009 at 9:59 pm #88208
      canan5000
      Participant

      Please clarify what you mean by binding site. Guanine does have two sites that it can bind (hydrogen bonds) to cytosine with when it is in DNA. Hope this is the binding you were looking for.

    • January 4, 2009 at 1:24 pm #88216
      whizzbee
      Participant

      I think there are 3 hydrogen bonds between guanine and cytosine, and 2 hydrogen bonds between adenine and thymine.

    • January 4, 2009 at 10:39 pm #88219
      MrMistery
      Participant

      whizzbee is right
      http://projects.cbe.ab.ca/Diefenbaker/B … mage35.gif

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