Figure 1From: Skewed X-chromosome inactivation in patients with esophageal carcinomaRepresentative data of AR gene exon 1 amplification products of two subjects (A and B) with CAG STR polymorphism. +, with Hpa II digestion; -, without Hpa II digestion; M, DNA marker, the upper and lower bands representing positions of 300 and 200 bp, respectively.Back to article page