The most known causative genes for genetic CRC that have been cloned and characterized within the past decade are those with polyps like familial adenomatous polyposis FAP, AFAP, juvenile polyposis, Peutz-Jeghers syndrome, Cowden syndrome and with no polyps (hereditary Nonpolyposis CRC, HNPCC). This evidence concerns the gene AFAP1 and Familial adenomatous polyposis.