11 genes that showed evidence of mutations in the T7 Endonuclease I assay were chosen for independent confirmation via Sanger sequencing. PCR products corresponding to these 11 sites were cloned into PCR-4-Blunt-Topo using a Topo cloning kit (Life Technologies) and transformed into XL-1 Blue cells. Plasmid DNA was isolated for multiple colonies from each transformation and then sent for DNA sequencing using either the T7 (5′-TAATACGACTCACTATAGGG-3′) and T3 (5′-ATTAACCCTCACTAAAGGGA-3′) primers or the M13F (5′-GTAAAACGACGGCCAG-3′) and T3 primers.