But surgery may not be a good choice for a woman who has a family history with no gene change.

I know that having the gene change doesn't mean I will get cancer for sure.

Some gene changes may indeed indicate the cell is in its death throes.

If you or anyone in your family has had a child with a disease that is linked to a gene change, let your doctor know.

But if your family member's test comes back negative, it is not likely that you carry the gene change.

You won't know for sure if your risk is higher because of a gene change.

You and other family members can then be tested for that specific gene change.

By age ten, if Volescu's gene change takes place, the new generation is completely ready to take over for the old.

These were the same categories that showed the most gene changes in the pilot data set.

Women with this ancestry have higher rates of these gene changes.