a. The tripeptide in Problem 12.1 is incorporated into a longer peptide. Show the hydrogen bonds that could form if two identical peptide strands are arranged side-by-side as shown below. b. Would the...

a. The tripeptide in Problem 12.1 is incorporated into a longer peptide. Show the hydrogen bonds that could form if two identical peptide strands are arranged side-by-side as shown below. b. Would the hydrogen bonding arrangement in part a more likely be part of an ?-helix or of a b-sheet? c. Is the arrangement of peptide strands parallel or is it antiparallel?