Definition of Electrophoresis



Electrophoresis is a laboratory technique that is used to separate biological molecules like DNA, RNA, and proteins. The separation is done based on their electric charge and size. The molecules to be separated move through the gel with the help of an electric current.

 


There are two electrodes present i.e. one anode and the other is a cathode. The gel that is used mostly is made up of polyacrylamide and the pores present in the gel serve the purpose of a sieve. In this way, the low molecular weight molecules tend to move faster than the high molecular weight molecules.


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