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p53 codon 72 genotype panel shows on a 3% agarose gel with ethidium bromide after PCR amplification. M: marker, DNA ladder 100 bp, lane 1: Arg-Arg homozygote, lane 2: Pro-Pro homozygote, and lane 3: Arg-Pro heterozygote. The Arg allele: 141 bp and the Pro allele: 177 bp.
