Pathology Human leukocyte antigen (HLA) which plays an impoant role in graft rejection is present on chromosome: A Sho arm of chromosome 6 B Long arm of chromosome 6 C Sho arm of chromosome 3 D Long arm of chromosome 3 💡 Explanation Human leukocyte antigen (HLA) which plays an impoant role in graft rejection is present on chromosome: ✓ Correct Answer: A. Sho arm of chromosome 6