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Genes and Cancer

Cancer begins when some of the genes in a cell become abnormal, causing the cell to grow and divide out of control. Here you can learn more about how changes in a cell's genes can lead to cancer.

Gene Changes and Cancer

Mutations are abnormal changes in the DNA of a gene and can sometimes lead to cancer. Find out common causes.

Oncogenes, Tumor Suppressor Genes, and DNA Repair Genes

The main types of genes that play a role in cancer are oncogenes, tumor suppressor genes, and DNA repair genes. Learn more here.

Cancer-related Genomic Testing and Genetic Testing

Genetics focuses on individual genes and their effects, while genomics is the study of a person's entire set of genes (their genome). Learn about what genomic and genetic testing can show.

Related Topics

Genetics and Cancer Risk

Some types of cancer run in certain families, but most cancers are not clearly linked to the genes we inherit from our parents. Gene changes that start in a single cell over the course of a person's life cause most cancers.

Biomarker Tests and Cancer Treatment

Finding certain genes or mutations can help diagnose and treat cancer. Learn more here.

Precision or Personalized Medicine

Precision medicine is a way health care providers can offer and plan specific care for their patients, based on the particular genes, proteins, and other substances in a person’s body. Learn more here.

More Resources

Flyer: Cancer Biomarkers

Flyer: Pharmacogenomic Testing to Guide Treatment Options

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