AKT-2693

A 55-year-old woman has recently been diagnosed with breast cancer and has tested positive for a BRCA1 mutation on genetic screening. Her mother and aunt both received treatment for breast cancer at a young age, indicating a strong family history of the disease.

The woman is worried that she may have passed the gene onto her son and daughter, and is also concerned that her sister may have inherited the gene.

During counselling, what is the most appropriate statement to make regarding the risk of her family members inheriting the BRCA1 gene?