Figure 4From: Meiotic errors followed by two parallel postzygotic trisomy rescue events are a frequent cause of constitutional segmental mosaicismShort tandem repeat analysis on fetal DNA of case 6. Case 6 shows two alleles with a 2:1 ratio for marker D1S1595 (A) and three different alleles for markers D1S1653 (B) and D1S1171 (C). This suggests a meiosis I origin for the duplicated segment of the unbalanced translocation.Back to article page