Only last week scientists announced that they had linked several genetic mutations to an increased risk of developing type-2 diabetes.

ECONOMIST: Diabetes

The company then hones in on the BRCA1 gene to find genetic mutations linked to breast cancer before mailing the results back a week later.

FORBES: How A Breast Cancer Pioneer Finally Turned A Profit

Male breast cancer is rare, with around 200 cases each year, compared with 33, 000 women, but scientists believe that about 10% of these may be linked to BRCA2 mutations.

BBC: Prostate cancer linked to mutant gene