We found noteworthy results in our population comparable to those of Abdel-Rahman et al(15), since we found the frequency of the XRCC1 genotype to be 48.5% GG (63/130), 28.5% AG (37/130) and 23.0% AA (30/130) in CRC cases. The gene discussed is XRCC1; the disease is colorectal carcinoma.