Its easy to fall into the trap of talking about the gene for a disease.
This infographic from Mosaic explains what that means.
Take breast cancer, for example.
Mosaics infographic puts some numbers on that risk.
Only 1 in 500 people have versions of BRCA1 or BRCA2 that put them at higher risk.
Genes influence risk, but they dont totally determine your fate.
Heres the full infographic.
Check out the link below for Mosaics explanation and the sources for their numbers.
Genetics: Risk or Destiny?| Mosaic