Figure 1From: Cytochrome P450 2E1 polymorphism and nasopharyngeal carcinoma development in Thailand: a correlative studyPCR-RFLP assay to detect the polymorphism of the CYP2E1 gene by RsaI enzyme digesting the 410 bp PCR product into 360 bp and 50 bp fragments. Lane 1, homozygous variant (-/-); Lane 2, heterozygous (+/-); Lane 3, homozygous wild type (+/+).Back to article page