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Lethal gene

Synonym(s)

  • lethal factor
  • lethal mutant
  • lethal mutation

Definition(s)

Genes which result in the premature death of the organism; dominant lethal genes kill heterozygotes, whereas recessive lethal genes kill only homozygotes.

Definition from: MeSH via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

Any gene in which a mutation will result in the premature death of the organism carrying it.

Definition from: CRISP Thesaurus via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

A gene that in some (as homozygous) conditions may prevent development or cause the death of an organism or its germ cells -- called also lethal factor, lethal mutant, lethal mutation.

Definition from: Merriam-Webster's Medical DictionaryThis link leads to a site outside Genetics Home Reference. by Merriam-Webster Inc.

See also Understanding Medical Terminology.

 
Published: December 16, 2014