Answer to 2-3, Part B was accidently omitted.
Answer is zero.
Should not work since dialysis readily separates small from large but does not readily separate macromolecules of different sizes. Won't work since both the native and disrupted protein will give the same fingerprint. Should both work since the individual peptide chains will have lower molecular weights and therefore different mobilities than the native protein. However, differences in shape between native and disrupted protein or differences in charge distribution might obscure the result. The answer depends on whether subunits are connected by disulfide bonds or not.