DNA is a molecule that carries genetic information, which tells how to make proteins that are important for the growth and development of all living things. DNA testing can reveal changes (mutations) in genes that can affect health.

About 5-10% of cancer cases are thought to be related to genetic mutations that can be inherited or passed down in families. Carrying genetic mutations does not mean you will get cancer, however, the mutations can increase the risk of certain cancers or certain types of cancer.

The recently approved liquid biopsy tests show great potential in helping to diagnose and plan effective treatment for cancer.