Objective:To investigate the killing effects of flavonoid monomer quercetin on K-Rasmutant colorectal cancer(CRC)cells.Methods:K-Rasmutant CRC cell lines(DLD1K-RAS G13D)and wild-type CRC cell lines(DLD1K-RASWT)were constructed and cultured.After different doses of quercetin were administered,cellular viability was assessed using the MTT assay.Cell proliferation was examined by colony formation assay.FITC Annexin V staining was used to identify apoptosis induced by quercetin.The expression of key proteins in...