You would never accept a child to be in Cancer. The 13-year-old has been receiving treatment for acute lymphoblastic leukemia at St. Jude Children's Research Hospital since she was 10, and as part of the diagnostic process, doctors learned that she has a mutation that makes her predisposed to developing cancer. It is estimated that nearly 10 percent of children with cancer have the disease because, they carry predisposing gene mutations.

That percentage may be even higher, because some children carry genetic mutations that have not yet been identified. A powerful way to identify more cancer-promoting mutations is by looking at the entire genome of an individual. In 2010, St. Jude Children's Research Hospital and Washington University founded the Pediatric Cancer Genome Project (PCGP), an unprecedented research project that has sequenced the normal and tumor genomes of more than 1,000…