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Electrophoresis for gDNA amplification of SRY. The SRY amplicon is 113 bp in length, and GAPDH is 89 bp in length. Male gDNA 100 ng—1; 75 ng—2; 50 ng—3; 25 ng—4; 10 ng—5; 1 ng—6; Female negative control gDNA—7; Patient DNA during pregnancy week 34 gDNA—8; patient DNA 4 years later—9.
