“Bent-Tail,” A Dominant, Sex-Linked Mutation in the Mouse

Although sex-linkage in animals is no longer an unusual phenomenon, its apparent rarity in rodents is noteworthy, especially in the intensively studied house mouse and rat.Hauschka, et al.,1 have presented evidence for a sex-linked lethal altering the sex ratio in the house mouse; Falconer2 recently reported a second sex-linked mutation in the house mouse.A third sex-linked mutation, Bent-tail (Bn), in the same species was indicated in a 'preliminary report.3Additional data on the inheritance of Bent-tail are presented in this report.