Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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12.2

41. Electrophoretic separation at pH 6 of a sample of polypeptide 1 (mw 200) polypeptide 2 (mw 400) and polypeptide
(mw 300) would result in which of the following, if the isoelectric point of each polypeptide occurs at pH 6?
A. Polypeptide 1 would move the farthest
B. Polypeptide 2would move the farthest
C. Polypeptide 3 would move the farthest
D. None of the polypeptides would move
42. Which of the following is NOT a sensible grouping of amino acids based on their polarity properties?
A. Ala, Leu, and Val
B. Phe, Trp, and Tyr
C. Asp, lle, and Pro
D. Asn, Ser, and Thr
E. All options are valid
43. Which of the following information is responsible to specify the three-dimensional shape of a protein?
A. The protein's peptide bond
B. The protein's interaction with other polypeptides
C. The protein's amino acid sequence
Transcribed Image Text:41. Electrophoretic separation at pH 6 of a sample of polypeptide 1 (mw 200) polypeptide 2 (mw 400) and polypeptide (mw 300) would result in which of the following, if the isoelectric point of each polypeptide occurs at pH 6? A. Polypeptide 1 would move the farthest B. Polypeptide 2would move the farthest C. Polypeptide 3 would move the farthest D. None of the polypeptides would move 42. Which of the following is NOT a sensible grouping of amino acids based on their polarity properties? A. Ala, Leu, and Val B. Phe, Trp, and Tyr C. Asp, lle, and Pro D. Asn, Ser, and Thr E. All options are valid 43. Which of the following information is responsible to specify the three-dimensional shape of a protein? A. The protein's peptide bond B. The protein's interaction with other polypeptides C. The protein's amino acid sequence
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