Pleаse use а blаnk sheet оf paper fоr this prоblem and scan it and upload it right after the exam. For the polypeptide sequence, Cys-Asp-Lys-Phe a. Draw the chemical structure of this polypeptide. (4 points) b. Circle an alpha carbon in this peptide. (2 points) c. If this peptide Sec-Val-Lys-Tyr is treated with trypsin, draw the final products. Draw the actual chemical structures of the products for full points. (4 points)