You are working in a bioengineering lab, and you are asked to create a peptide with a helix with length of 3 nm, a beta strand with length of 35 Å, and a linker containing 25 amino acid residues. a. How many amino acid residues are in this peptide? b. What is the mass of the peptide? 2. Why is quinary structure necessary for a full understanding of how drugs work in cells?

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