Figure 2: Electrophoresis image of tsahe ESR2 genotyping visualized by ethidium bromide staining on agarose gel. The lengths of the DNA fragments are (1) 439 bp and 274 bp for the GG genotype, (2) 439 bp, 274 bp and 207 bp for the GA genotype (3) 439 bp and 207 bp for the AA genotype.