Southern Blot use to detect DNA. Northern Blot use to detect RNA. Western Blot use to detect protein. In Southern blot technique DNA must be extracted and digested by restriction enzymes then detect digested bands by agarose gel electrophoresis after that blot agarose gel by blotting buffer to easy use probe and detect blotting gel with probe by X-ray film (Watch Related Video in #geneticteacher) #geneticteacher

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