Test for heterosis in topcross progeny of replicate selected lines of mice.
D000818:Animals; D001835:Body Weight; D005260:Female; D006823:Hybrid Vigor; D006824:Hybridization, Genetic; D007178:Inbreeding; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D012641:Selection, Genetic; D013623:Tail