However, as we wrote above (see Section 3.3), analyzing the data in terms of the number of alleles of the RAD51 rs1801321 and XRCC3 rs861539 variants, it was observed that the coexistence of three and four variant alleles of these genes was associated with a significantly higher risk of thyroid cancer. The gene discussed is XRCC3; the disease is thyroid gland carcinoma.