| Answer | Crossword Clue |
|---|---|
| TYPEO | Like the blood of a universal donor |
| ONEGATIVE | Blood type historically considered the universal donor |
| TYPEO | Blood group known as the universal donor |
| RHNEGATIVE | Like the blood type of "universal donors" |
| ONEG | Blood type of a universal donor, briefly |
| TYPEO | Blood bank's "universal donor" |
| ONEG | Universal donor blood type, briefly |
| ONEGATIVE | So-called universal donor blood |
| ONEG | Universal donor blood type, for short |
