Describe what protein homology is, and how it is inferred. (5 Marks) 2.2 Describe the molecular mechanisms taking place at DNA level that allow proteins to gain new functions during evolution. (7.5 Marks) 2.3 Discuss the evolutionary relationship existing between chymotrypsin and subtilisin.Describe the structure (2.5 Marks) and the function (5 Marks) of signal peptides. 3.2 Describe the three main types known of transmembrane protein structure. (5 Marks) 3.3 Describe how the hydropathy plots are constructed
