NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,413 terms related to cancer and medicine.
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- listen (myoo-TAY-shun)
- Any change in the DNA sequence of a cell. Mutations may be caused by mistakes during cell division, or they may be caused by exposure to DNA-damaging agents in the environment. Mutations can be harmful, beneficial, or have no effect. If they occur in cells that make eggs or sperm, they can be inherited; if mutations occur in other types of cells, they are not inherited. Certain mutations may lead to cancer or other diseases.
- mutation carrier
- listen (myoo-TAY-shun KAYR-ee-er)
- A person who has a mutated (changed) copy of a gene. This change may cause a disease in that person or in his or her children.