made, done, presented, etc., in good faith; without deception or fraud: a bona fide statement of intent to sell. 2. authentic; true: a bona fide sample of Lincoln's handwriting. Origin of bona fide.
A genetic test that could determine men at the highest risk of developing aggressive disease could change how prostate cancer is treated, he says, since doctors would be able to more accurately predict which men would need more rigorous follow-up and which men likely wonât have to worry about their prostate that much.
1 A female child of a man with breast cancer who inherits the defective gene has a risk between 40% and 80% of eventually developing breast cancer.  Men with a genetic predisposition to breast cancer are also at higher risk of getting prostate cancer at a younger age than usually diagnosed.