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Details of maternal UPD by SNP array analysis of chromosome 1. (A) B-allele chart displayed four segments of chromosome 1 alternately homozygous (UPiD; shown in blue, no heterozygous SNPs, only AA and BB)) and heterozygous (UPhD; SNPs with AB genotype present) regions. (B) The DOCK7 gene (red circle) is located in p31.3, a region situated in one of the four homozygous segments. (C) Aneuploidy screening (Log R Ratio) did not show aneuploidies or CNVs >10 Mb.
