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Undig.–undigested DNA. Epi MspI–digested with Epi MspI. Epi HpaII–digested with Epi HpaII. 1, 2, 3 –control pUC19/Smal unmethylated (undigested DNA, Epi MspI, and Epi HpaII, respectively). 4, 5, 6 –control mpUC19/Smal methylated (undigested DNA, Epi MspI, and Epi HpaII, respectively). “G”–ground control group (level marked by dotted line), “F”–flight group.
