Question

need help with the whole worksheet!!

Instructions Answer the questions in the document. When you are finished, use the image Capture and Upload tutorial (Google Docs) to document each page of your work and upload it to the appropriate Dropbox area folder Questions 1. (5 points) Draw the structure of S-A-G-D(ser-ala-gly-asp) as it would exist at physiological pH. 2. (3 points) Describe how an alpha-helix is held in that pattern. Be specific concerning which atoms are involved in the protein structure and how/why they are attracted to each other. 3. (2 points) Would expect the side chain of valine to be directed toward a protein's interior or exterior when the protein is in an aqueous solution? Explain. 4. (3 points) is the following heterocycle a purine or a pyrimidine? Which heterocycle in DNA is it more similar to? Explain. Which heterocycle would you expect it to base-pair with in DNA? Explain. HD 5. (2 points) Using the table in your text (Table 28-1 in McMurry, 9th edition), what would be the mRNA sequence (S' to 3) corresponding to the tetrapeptide in Question #1?

Answer 1

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ay It is a peptide structure of 4 anino а са с ger - Ala-am - a4e) Но, е си а А+ Paso load Pч , exia , ot 40c i o") якои ch, 1. II terminal cadernera