In an invitro experiment using radio-labeled nucleotides, a researcher is trying to analyze the possible products or DNA replication by resolving the products using urea-polyacrylamide gel electrophoresis. In one experimental […]
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To determine the Isoelectric point of a protein
To determine the isoelectric point of a protein, first establish that a gel: (a) Contains a denaturing detergent that can distribute uniform negative charges over the protein’s surface. (b) Exhibits […]
Two-dimensional gel electrophoresis (2D-GE)
The first step in two-dimensional gel electrophoresis generates a series of protein bands by isoelectric focusing. In a second step a strip of this gel is turned 90 degrees, placed […]
Determine the isoelectric point of a protein
To determine the isoelectric point of a protein, first establish that a gel: (a) Contains a denaturing detergent that can distribute uniform negative charges over the protein’s surface. (b) Exhibits […]
To determine the Isoelectric point of a Protein, Isoelectric focusing
To determine the isoelectric point of a protein, first establish that a gel: (a) Contains a denaturing detergent that can distribute uniform negative charges over the protein’s surface. (b) Exhibits […]
SDS-PAGE & Protein Separation Role of SDS Explained
By adding SDS (sodium dodecyl sulfate) during the electrophoresis of proteins, it is possible to: (a) Determine a protein’s isoelectric point. (b) Determine an enzyme’s specific activity. (c) Determine the […]
The electrophoretic mobility of migration of different biomolecules
The electrophoretic mobility of migration of different biomolecules In electrophoresis, the electrophoretic mobility determines the characteristics of migration of different biomolecules. Which of the following is not having any influence […]
In SDS PAGE of protein one SDS molecule will bind to
In SDS PAGE of protein molecule separation, one SDS molecule will bind to (a) Every amino acid (b) Every two amino acids (c) Every three amino acids (d) Every four […]
Advantage of discontinuous buffer system in SDS and native PAGE
The main advantage of discontinuous buffer system in SDS and native PAGE is (a) Conformation of protein is conserved (b) Constantly maintain the charge of proteins (c) Assist in migration […]
Tracking Dye Used in SDS PAGE
The tracking dye used in SDS PAGE will be (a) Anionic (b) Cationic (c) Non ionic (d) Amphipathic The correct answer is: (a) Anionic Explanation: In SDS-PAGE, tracking dyes like […]


