The word "inbred" refers to something or someone that has been produced from the mating of closely related individuals within a particular group. Full definition
The unit provides genetic testing services using a combination of both microsatellite and single nucleotide polymorphism (SNP) panels for characterizing and selecting breeders in a wide variety of inbred mouse strains subsequently used for the generation of congenic animals. (fleming.gr)
To test their idea, they did experiments with highly inbred strains mice. (newscientist.com)
«The original paper was peer reviewed, but we should have sought at least one additional referee with expertise in the genetics of inbred mouse strains. (newatlas.com)