Documents Isabel K. Darcy Mathematics Department University of Iowa math.uiowa/~idarcy

Isabel K. Darcy Mathematics Department University of Iowa http://www.math.uiowa.edu/~idarcy http://knotplot.com/zoo Duplex DNA knots produced by Escherichia coli topoisomerase…

Documents Isabel K. Darcy Mathematics Department University of Iowa idarcy ©2008 I.K. Darcy. All rights...

Isabel K. Darcy Mathematics Department University of Iowa http://www.math.uiowa.edu/~idarcy ©2008 I.K. Darcy. All rights reserved = = = Rob Schareinâs KnotPlot.com http://updatecenter.britannica.com/art?assemblyId=91&type=A…