Fig. 2

Individual ARMS PCR electrophoretic pattern of the EGFR gene (rs121434568) product, with each lane representing a different participant. M stands for DNA marker (100 bp). Depending on the primer, specific 199 bp bands represent the T allele, and specific 196 bp bands represent the G allele. The TG heterozygous genotyping is represented by lanes 3, 4, 7, and 8. where lanes 3 and 7 represent the T allele band and lanes 4 and 8 represent the G allele. Lanes 1, 2, 5, and 6 indicate TT homozygosity; whereas the G allele is absent from lanes 2 and 6, the T allele is present on lanes 1 and 5. Lanes 9 and 10 are GG homozygous, with the G allele appearing at 196 bp on lane 10 and the T allele absent from lane 9