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Agarose gel electrophoresis of RAPD-PCR products of different Bt isolates using OPA-20 (A) and OPA-18 (B). Lane 1: 100 bp Fermantas DNA ladder; Lane 1–21: Isma 1, Tosk 1, Tosk 2, Port 1, Dipel® 2X, Agerin®, Sohg 1, Matr1, Qena 1, Qena 2, Qena 3, R.Sea 1, Asut 1, Asut 2, S.Sinai 1, S.Sinai 2, S.Sinai 3, N.Sinai 1, N.Sinai 2, N.Sinai 3 and HD-635, respectively.
