Question

which woman would be most likely to benefit from genetic testing for breast cancer? a healthy 75 - year - old woman with no family history of breast cancer a 25 - year - old woman whose mother, aunt, and grandmother had breast cancer a 55 - year - old woman whose older sister was just diagnosed with breast cancer a 40 - year - old woman who has a cousin with breast cancer all women can benefit from genetic testing for breast cancer.

Explanation:

Genetic testing for breast cancer is most beneficial for those with a strong family history of the disease. A 25 - year - old woman with multiple close relatives (mother, aunt, grandmother) having breast cancer has a higher likelihood of having a genetic predisposition (such as BRCA1/BRCA2 mutations). A healthy 75 - year - old with no family history has a low risk. A 55 - year - old with a sister (a first - degree relative, but less significant than multiple generations) has a lower risk compared to the 25 - year - old. A 40 - year - old with a cousin (a more distant relative) has an even lower risk. And not all women can benefit as it depends on risk factors.

Answer:

a 25 - year - old woman whose mother, aunt, and grandmother had breast cancer