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Agarose gel electrophoresis of fresh frozen and FFPE DNA. Each lane contains DNA from a separate mouse. Above the gel is indicated the time the tissue was fixed in formalin prior to processing. Size markers (M) range from 100 to 1517bp (100bp ladder). This size range was used to estimate the size of the DNA in the region critical for most sequence-oriented applications. (A) Contains DNAs isolated from mouse kidney. (B) Contains DNAs isolated from mouse liver.
