Only a partially characterized BRCA1 mutation landscape in BC Moroccans is available and includes the following deleterious mutations: c.68-69delAG, c.116G > A, c.181 T > G, c.798-799delTT, c.1016dupA, c.2126insA, c.2805delA, c.3279delC, c.3453delT, c.4942A > T, c.5062-5064delGTT and c.5095C > T [16–19]. Here, BRCA1 is linked to breast cancer.