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back mutation

noun

, Genetics.
  1. a mutation of an existing mutant gene that restores it to its previous form.


back mutation

noun

  1. genetics the reversion of a mutant to the original phenotype
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of back mutation1

First recorded in 1935–40

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