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In molecular biology, cloning buffer solutions containing TRIS, acetic acid, EDTA, or more are used in agarose electrophoresis, typically for the separation of nucleic acids such as DNA and RNA. Various buffer formulations are available with different base ingredients in the mixture. These different mixtures have varied buffer capacities and run times. Buffer solutions serve to protect samples against pH changes while the sample is undergoing a wide variety of chemical applications.
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