==Homework review== ==Osmotic Pressure / Protein-DNA== * Ratio of specific to non-specific protein-DNA binding * Kinetic scheme for protein-DNA interactions * Sidorova and Rau extension to off rate analysis ==Free Energy diagram for protein unbinding== * Change as water chemical potential decreases * Hint at force ==Polymer physics models (intro)== * DNA overstretching / polysaccharide stretching - Steve Koch