CRC is a disease characterized by the accumulation of genetic and epigenetic alterations resulting in the failure of critical regulatory genes and signalling pathways, which include p53, Bcl-2, BIRC7, IGF2, BRAF, PIK3CA, WNT, PI3K and RAS–MAPK [5, 6]. The gene discussed is BCL2; the disease is colorectal carcinoma.