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RNA integrity and gDNA contamination test by denaturing agarose gel electrophoresis. The 28S and 18S rRNA bands are clear and intact. Furthermore, the 28S band is twice as intense as the 18S band. Lanes 1-3 represent high-grade ovarian serous cancer tissue samples (A1-A3) while lanes 4–6 represent healthy fallopian tube tissue samples (B1-B3). gDNA, genomic DNA; rRNA, ribosomal RNA.
