The following is an excerpt.
Tracey Barraclough made a grim discovery in 1998. She found she possessed a gene that predisposed her to cancer. “I was told I had up to an 85% chance of developing breast cancer and an up to 60% chance of developing ovarian cancer,” she recalls. The piece of DNA responsible for her grim predisposition is known as the BRCA1 gene.
Tracey was devastated, but not surprised. She had sought the gene test because her mother, grandmother and great-grandmother had all died of ovarian cancer in their 50s. Four months later Tracey had her womb and ovaries removed to reduce her cancer risk. A year later she had a double mastectomy.
Read the full article here: Gene wars: the last-ditch battle over who owns the rights to our DNA