(5) You have discovered a brand-new protein and need to determine its tertiary (and possibly quaternary) structure. You purify your protein and then perform SDS-PAGE electrophoresis: Native +SDS What is the three-dimensional structure of your protein? 200 kD (A) a single monomer subunit (B) a heterotrimer (C) a homotrimer (D) a homodimer (E) a heterodimer 100 kD 50 kD 25 kD

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