I need your expertise, is breast cancer genetic?

Genetics can play a: Significant role for some women (not for others). Include: being female, increasing age, genetics, family history of breast cancer, previous breast cancer, being caucasian, dense breast tissue, some previous benign breast conditions, never having given birth or 1st child after age 30, early menarche, late menopause, radiation (chest), exposure to diethylstilbestrol, hormone replacement after >>.