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What is the purpose of gel electrophoresis?

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Gel electrophoresis is used to separate macromolecules like DNA, RNA and proteins. DNA fragments are separated according to their size. Proteins can be separated according to their size and their charge (different proteins have different charges). read more

Polyacrylamide gel electrophoresis (PAGE) is used for separating proteins ranging in size from 5 to 2,000 kDa due to the uniform pore size provided by the polyacrylamide gel. Pore size is controlled by modulating the concentrations of acrylamide and bis-acrylamide powder used in creating a gel. read more

The Purpose of Electrophoresis By Jacklyn Dephoff; Updated April 24, 2017 Electrophoresis is a “powerful and inexpensive molecular separation technique,” as stated by Dr. William H. Heidcamp, in the Cell Biology Laboratory Manual. read more

Gel electrophoresis can be used for a range of purposes, for example: To get a DNA fingerprint for forensic purposes; To get a DNA fingerprint for paternity testing; To get a DNA fingerprint so that you can look for evolutionary relationships among organisms; To check a PCR reaction. read more

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