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DNA and RNA symmetries per the origin(s) of life

  1. Sep 20, 2006 #1
    Does the single-handedness of DNA and RNA indicate that life originated few times, if more than once? What might the sameness between early sequences (in bacteria, say) indicate in this regard?
  2. jcsd
  3. Sep 21, 2006 #2
  4. Sep 22, 2006 #3
    From the article
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