http://digfir-published.macmillanusa.com/iga11e_animations/animation_11_2.html
Chapter
1. 11.2 Regulation of the Lactose System in E. coli: O^c lac Operator Mutations
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http://digfir-published.macmillanusa.com/iga11e_animations/animation_11_2_dlap.xmlDLAP questions563a3dfc757a2e7a03000001