Congenic
    
    
    
        
        
            Adjective
congenic
-   (of different strains of an organism) To be genetically identical except a variation in a limited genetic region or locus.  A genetic variant produced by backcrossing an organism with a mutation or genetic variation through to the parental inbred strain.
 
     
     
 
         
        
     
     
    
        
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