In a gel filtration column smaller proteins enter the beads more readily large proteins enter the beads more readily large proteins elute first both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
Electrophoresis of histones and myoglobin under non-denaturing conditions (pH = 7.0) results in both proteins migrate to the cathode histones migrate to the anode and myoglobin migrates to the cathode histones migrate to the cathode and myoglobin migrates to the anode both proteins migrate to the anode TRUE ANSWER : ? YOUR ANSWER : ?
In SDS-PAGE, the protein sample is first fractionated by electrophoresis then treated with an oxidizing agent followed by anionic detergent. treated with a oxidizing agent and then with anionic detergent followed by fractionation by electrophoresis treated with a reducing agent and then with anionic detergent followed by fractionation by electrophoresis None of these TRUE ANSWER : ? YOUR ANSWER : ?
In a native PAGE, proteins are separated on the basis of net negative charge net positive charge net charge and size net positive charges size TRUE ANSWER : ? YOUR ANSWER : ?
In an SDS-PAGE smaller proteins migrate more rapidly through the gel proteins are denatured by the SDS proteins have the same charge-to-mass ratio All of these TRUE ANSWER : ? YOUR ANSWER : ?
The subunit molecular weight as well as the number of subunits in the quaternary structure can be determined by combining information from (a)and (b) gel filtration chromatography isoelectric focusing SDS-PAGE electrophoresis TRUE ANSWER : ? YOUR ANSWER : ?
In isoelectric focusing, proteins are separated on the basis of their relative content of positively and negatively charged residue size relative content of negatively charged residue only relative content of positively charged residue only TRUE ANSWER : ? YOUR ANSWER : ?
Proteins can be visualized directly in gels by staining them with the dye none of these measuring their molecular weight using electron microscope only TRUE ANSWER : ? YOUR ANSWER : ?
Proteins are separated in an SDS-PAGE experiment on the basis of their different isoelectric points positively charged side chains molecular weight negatively charged side chains TRUE ANSWER : ? YOUR ANSWER : ?