The disease erythroblastosis fetalis is caused by incompatibilities in this substance, discovered independently by Karl Landsteiner.
The disease erythroblastosis fetalis is caused by incompatibilities in this substance, discovered independently by Karl Landsteiner. Since 15% of people lack it, the Kleihauer-Betke test which detects potential problems by looking for fetal red blood cells is used during pregnancies.  For ten points, what blood antigen derives its name from the animal in which it was originally found?
The disease erythroblastosis fetalis is caused by incompatibilities in this substance, discovered independently by Karl Landsteiner.
Rh factor