LOH status in hESC lines. (A) The genome-wide LOH status of the random XCI hESC group. (B) The genome-wide LOH status of the skewed XCI hESC group. (C) Enlarged diagram showing the LOH status around the XIST locus and the XACT locus. Purple bars indicate regions of LOH. Only LOHs with a size larger than 100 kb are counted.