The NCI Dictionary of Cancer Terms features 7,791 terms related
to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related
word or phrase in the search box.
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Mice that have had DNA from another source put into their DNA. The foreign DNA is put into the nucleus of a fertilized mouse egg. The new DNA becomes part of every cell and tissue of the mouse. These mice are used in the laboratory to study diseases.