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a Electrophoretogram of DNA fragments for Ser680Asn polymorphism after digestion with Bsr I. Homozygote A/A was shown by the band of 520 bp. Homozygote G/G was shown by the bands of 413 bp and 107 bp. Heterozygote A/G was shown by the bands of 520 bp, 413 bp and 107 bp. b DNA sequencing of the Ser680Asn polymorphisms (AA, AG and GG) as indicated by arrows. The lane marked M is the marker of DNA. The lane marked P is the DNA of PCOS without enzyme digestion
