The tumor suppressor gene p53 is frequently mutated in human breast cancer and is a marker for poor prognosis and resistance to chemotherapy. Transplantation of p53 null mouse mammary epithelium into syngeneic wild-type mice leads to normal mammary gland development followed by spontaneous mammary tumors that recapitulate many of the phenotypic. molecular and genetic features of human... https://www.alarecre.com/American-Flag-Color-Block-iPhone-14-Waterproof-Case-p12619/