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A mutation that changes one nucleotide in a gene or DNA sequence by substitution, deletion, or addition.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||point mutation - (genetics) a mutation due to an intramolecular reorganization of a gene|
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