RAD51 and breast adenocarcinoma: Indeed, Rad51 as well as BRCA expression is detected in normal mammary glands (n = 10) of p63+/−;p73+/− mice (Figure 4B and 4D) and is lost in hyperplastic mammary glands (n = 4) and mammary adenocarcinomas (n = 6) in these mice (Figure 4C and 4E).