Allele XRCC3-241Met (OR 0.85, 95%CI 0.72–0.99, p < 0.045), XRCC2-41657 T (OR 1.67, 95% CI 1.42–1.96, p < .0001), BRCA1-356R (OR 1.61; % CI 1.37–1.90, p < .0001) and RAD51–135C (OR 5.16; 95% CI 4.29–6.20, p < .0001) strongly correlated with the neoplastic disease. The gene discussed is RAD51; the disease is neoplasm.