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lethal gene

   Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.01 sec.
lethal gene [′lē·thəl ′jēn]
(genetics)
A gene mutation that causes premature death in heterozygotes if dominant, and in homozygotes if recessive. Also known as lethal mutation.


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Byline: DR MIRIAM STOPPARD I FULLY sympathise with any family that wants to rid itself of a lethal gene.
A few sequences were homologous to immune system-related (allergens) genes and two were similar to motifs of the sex- lethal gene of Drosophila.
The compositions are DNA constructs that comprise novel arrangements of T-DNA molecules containing genes of interest, positive selectable marker genes, and conditional lethal genes.
 
 
 
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