| Primary Identifier | MGI:1856675 | Allele Type | Radiation induced |
| Gene | Br | Inheritance Mode | Semidominant |
| Strain of Origin | (101/H x C3H/HeH)F1 | Is Recombinase | false |
| Is Wild Type | false |
| description | In an interspecies backcross used to map Br genetically, it was determined that the mutation occurred in a C3H/HeH-derived region of Chromosome 17. (J:43275) |