BIO 315: Exam 1 Graded A Questions and Answers 2024

T/F: RNA Polymerase requires a DNA primer to begin Replication? - F Which amino acid will always be at the N-terminus of newly translated proteins? a.) Proline, Pro, P b.) Arginine, Arg, R c.) Alanine, Ala, A d.) Methionine, Met, M e.) Glycine, Gly, G - d.) Methionine, Met, M. This is translated from the start codon and starts every single protein. Which of the following nucletotides will never be found in messenger RNA? a.) UTP b.) TTP c.) CTP d.) ATP - b.) TTP For a membrane protein, which of the following locations would you expect to find an amino acid with a hydrophilic R-group (side chain)? a.) Exposed to the hydrophobic lipid layer in the core of the membrane b.) Packed to the center of the membrane domain of a protein, as far from the hydrophobic lipid core as possible. c.) Making salt bridges in the interior of the native folded protein d.) Membrane proteins do not contain hydrophilic amino acids! - b.) Packed to the center of the membrane domain of a protein, as far from the hydrophobic lipid core as possible. For a cytosolic protein, which of the following locations would you expect to find an amino acid with a charged R-group (side chain)? a.) Making salt bridges in the interior of the native folded protein b.) Exposed to the cytosol making hydrogen bonds with water c.) Exposed to the hydrophobic interior of the lipid bilayer d.) On the interior of the natively folded protein - b.) Exposed to the cytosol making hydrogen bonds with water If a cytosolilc protein cannot fold on its own, which of the following events could possibly happen: a.) The unfolded protein will be exported out of the cell. b.) Large ATPases called chaperones will digest the protein down to component amino acids. c.) The hydrophobic sidechains of the unfolded protein will spontaneously clump with other exposed hydrophobic patches to make an un-ordered protein aggreagate. d.) Nothing, all proteins fold on their own. - c.) The hydrophobic sidechains of the unfolded protein will spontaneously clump with other exposed hydrophobic patches to make an un-ordered protein aggreagate. For a cytosolic protein, which of the following locations would you expect to find an amino acid with a hydrophobic R-group (side chain): a.) On the surface of the native folded protein b.) Making hydrogen bonds on the surface of the native folded protein c.) Making salt bridges in the interior of the native folded protein d.) In the interior of the native folded protein - d.) In the interior of the native folded protein T/F: RNA Polymerase can add ribonucleotides to the 5' end of a RNA strand. - False Choose the option that best fills in the two blanks: RNA is made from ______; DNA is made from ________ - ribonucleotides; deoxyribonucleotides If a cytosolilc protein cannot fold on its own, which of the following events could possibly happen: