(jeh-NEH-tik PROH-file)

Information about changes in specific genes, gene expression, or chromosomes in cells or tissue of a person. These changes may be a sign of a disease or condition, such as cancer. They may also be a sign that a person has an increased risk of developing a specific disease or condition or of having a child or other family member with the disease or condition. A genetic profile may be used to help diagnose disease, plan treatment, or find out how well treatment is working.