2 Children
| Definition | Name | Synonym | Primary Identifier |
|---|---|---|---|
| nucleus of pedigree U.ra | U.ra nucleus | WBbt:0002914 | |
| nucleus of pedigree U.rp | U.rp nucleus | WBbt:0002917 |
3 Parents
| Definition | Name | Synonym | Primary Identifier |
|---|---|---|---|
| cell nucleus with a defined lineage. | Nucleus | WBbt:0006803 | |
| U nucleus male | ABplppppapa nucleus male | WBbt:0008187 | |
| post-embryonic cell of pedigree U.r | U.r | WBbt:0007388 |



