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Karyotype and SNP array. A) Karyotype showed 2 extra X chromosomes (red arrows). B) X chromosomes on SNP array shows 2 extra lines on B allele frequency plot (red arrows) compared to control showing heterozygous SNPs are separated into 3 distinct lines. The corresponding log R ratio plot shows a thicker line with higher log R ratio (black arrow) than control because extra chromosomes are calculated as duplication.
