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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A mutation that changes only one small area or one nucleotide in a gene.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A mutation that involves the replacement, addition or deletion of a small number of bases (especially just one) at a specific site within a gene

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (genetics) a mutation due to an intramolecular reorganization of a gene


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