| http://www.w3.org/ns/prov#value | - That tells biologists a lot about the way cells manipulate and duplicate DNA. They end up with a better understanding of how drugs, viruses, and other things can alter DNA's elaborate tangles.There is a lot more to knots than tying your shoelaces!Muse, March 1999, p. 26-27.Image creditsSecond from bottom and bottom: Knotted strands of DNA. Nicholas R. Cozzarelli, University of California, Berkeley,
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