We probably wouldn't have heard about this if the baby did have the gene. That'd be eugenics. And wrong.
The first baby in the UK tested before conception for a genetic form of breast cancer has been born.
Doctors at University College London said the girl and her mother were doing well following the birth this week.
The embryo was screened for the altered BRCA1 gene, which would have meant the girl had a 80% chance of developing breast cancer.Women in three generations of her husband's family have been diagnosed with the disease in their 20s. - BBC News