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Ethidium bromide-stained agarose gel demonstrating selected gr/gr deletions. Upper panel “A”: sY1291 STS PCR products show absence of sY1291 (527 bp) in gr/gr deletion cases #17, 47, 49, and 57 (lanes 4–7). Lower panel “B”: sY1191 STS PCR results showing presence of sY1191 (385 bp) in the same gr/gr deleted cases (lanes 4–7). L= 100 bp DNA ladder, Lane 1: negative control (water), Lane 2: negative control (female DNA), Lane 3: positive control (fertile male DNA).
