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Agarose gel electrophoresis of SrRNA and 18s rRNA genes for Entamoeba gingivalis and Trichomonas tenax, respectively. A: Ladder (size marker), 100 bp; B: positive control (T. tenax, 496 bp); C: positive sample of T. tenax; D: positive control (E. gingivalis, 454 bp); E: positive sample of E. gingivalis; E: negative control (distilled water)
