Write the name and structural formulas of the different purine and pyrimidine bases.
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- 1. If Ser 80 was replaced with Arg what kind is the change in the bond type between these two molecules? Will this change be more or less stable. ExplainWhat is the monomer of a nucleic acid macromolecule?1. a. Explain why the melting point of palmitic acid (16 carbons, no double bonds) is slightly lower thanthat of stearic acid (18 carbons, no double bonds). Explain why the melting point of oleic acid (18carbons, one double bond) is lower than that of stearic acid b. A mixture of lipids containing phosphatidic acid, cholesterol, testosterone, phosphatidylserine, andphosphatidylethanolamine was applied to a hydrophobic interaction chromatography column. Thecolumn was washed with a high salt buffer, and the lipids were then eluted with decreasing saltconcentrations. In what order would the lipids be eluted from the column? Explain your answer.
- 7. a) In terms of molecular bonds, why do starches supply more energy than simple sugars?1. Draw the structures of the 20 biologically active AA. Under each structure, write the name, one-letter code, and three-letter code followed by the AA classification based on polarity.2. The C-C bond angles for the ring in M2 is: 60º 109.5º 120º 180º