BRCA is one risk factor for certain cancers. You can get genetic counseling to understand your cancer risk looking at this and other markers.
In this context, though, we're talking about measuring the actual cancer (including the tumor's mutations) to determine what therapies it is likely to be responsive to.
In this context, though, we're talking about measuring the actual cancer (including the tumor's mutations) to determine what therapies it is likely to be responsive to.
e.g. this: https://www.cancer.gov/about-cancer/treatment/types/biomarke... not this: https://www.cancer.gov/about-cancer/causes-prevention/geneti...