Fig. 2From: Genetic polymorphisms and gene expression of one-carbon metabolizing enzymes and their relation to breast cancerAgarose gel (3%) electrophoresis for Hinf1 restriction digestion product of the PCR products of MTHFR 198 bp fragments containing C677T SNP (Lanes 2–8). Lanes 4–7 represent the CC allele, Lane 8 represents the heterozygous CT allele, and Lane 3 represents the homozygous genotype allele TTBack to article page