(d)antiparallel region is not a feature commonly observed in beta sheets.Beta sheets have extended polypeptide backbone.
QUESTION 21 Which of the following is not a feature commonly observed in ß sheets? O...
QUESTION 20 Which of the following is not a feature commonly observed in a helices? A. left-handedness B. amino acid side chains that point outward C. cylindrical shape D. one helical turn every 3.6 amino acids
Part A Which is not true about beta-sheets? O Antiparallel sheets provide better hydrogen bonding than parallel sheets O Antiparallel is when two peptide strands run in opposite directions. O The sheets are pleated The side chain of the residues are side-byside (planar) to the peptide backbone. Submit Request Answer
Q24. Which of the following is NOT a feature of DNA A) Base pairs joined by hydrogen bonds B) Base unit is the nucleoside C) Strands are complementary and antiparallel D) Sugar phosphate backbone
Which of the following is NOT a feature of laissez faire capitalism? QUESTION 4 Which of the following is not a feature of laissez faire capitalism? O a. Private ownership of wealth O b. Guaranteed income O c. Competition O d. Economic freedom o e. Limited role of government
QUESTION 28 Which of the following is a feature of vitamin D? O a. Most adults living in the southern United States need small amounts of dietary vitamin D O b. Lifeguards on southern beaches have increased risk for vitamin D toxicity c. The average consumption in the United States does not meet the recommended intake O d. Taking vitamin D on an empty stomach improves absorption by as much as 50%. e. The bioavailability of vitamin D from soy...
Problem 1. (15 pts) Multiple Choice Which of the following methods can be used to purify large amounts of proteins a. Hydrophobic chromatography b. Precipitation c. Equilibrium dialysis d. Polyacrylamide gel electrophoresis e. Ion exchange chromatography f. a, c, e g. a, b, c, d h. a, b, c, e i. All of the above Circle the one correct answer. a. Beta sheets are stabilized by H-bonds b. Ramachandran plots are determined by steric clashes between side chains and the...
PLease do 19-21 Question 18 Which of the following will most likely be observed if the spliceosome were to be inactivated? A decrease in the formation of 2 to 5 phosphodiester bonds. An increase in the formation of RNA lariats. An increase in the number of RNAs produced by alternative splicing. O A decrease in 7mGppp formation Question 19 Which of the following is NOT true of typical aminoacyl tRNA synthetases? They catalyze the formation of a larger molecule. They...
which of the following is not a way in which amino acid structure in sequence might affect the properties of a protein a) Amino acid side chains form peptide bonds with each other causing the molecule to twist into a secondary structure b) Amino side chains interact with each other causing polypeptides to bend into a tertiary structure c) Hydrogen bonding between every fourth amino acid results in the formation of a coil called an a helix d) Hydrogen bonding...
Question 21 (2 points) Which one of the following dienophiles is least reactive in the Diels-Alder reaction? OCH ОСН, Нco. IV a) b) III Oc)!! d) IV Question 22 (2 points) Which of the molecules below would be the expected product for the hydrogenation of the following alkene with Na and liq. NH3? Na NH v III IV a) Ob) II Oc) d) v Question 23 (2 points) Identify the final product for the following reaction. 1. BH3, THE 2....
Question 21 (1 point) With which of the Question 22 (1 point) Which of the following is a concern when using oral chemotherapy agents e a O b Patient loss of control over treatment Predictable absorption of agents O d Ensuring adherence to prescribed therapy