Figure 1.
Schematic of SNP positions within BLM, WRN, andRECQL. Black vertical bars indicate exon positions and gray jagged lines the positions of identified SNPs in each gene. “.1” and “.2” denote SNPs found within the same PCR product. SNP numbering reflects their position in a 5′ to 3′ orientation. SNPs used in haplotype determination are in bold.
