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Across
  1. 3. – The type of disease that can occur in newborns due to Rh incompatibility. (Down)
  2. 5. – The liquid component of blood that carries cells and proteins. (Down)
  3. 7. – Another term for RBC antigens that promote clumping. (Down)
  4. 11. – A protein on RBCs that determines whether blood is positive or negative. (Across)
  5. 13. – The process of clumping that occurs when incompatible blood is mixed. (Across)
  6. 14. – A person who receives donated blood. (Across)
  7. 15. – A protein in plasma that reacts against specific antigens. (Down)
Down
  1. 1. – Classification based on the presence of A, B, AB, or O antigens. (Across)
  2. 2. – The process of transferring blood from one person to another. (Across)
  3. 4. – A term for blood types that can be safely mixed. (Down)
  4. 6. – The parent whose Rh factor is important in pregnancy. (Across)
  5. 8. – The body's ability to resist infections, often supported by antibodies. (Across)
  6. 9. – Another name for a red blood cell. (Across)
  7. 10. – A person who gives blood for transfusion. (Down)
  8. 12. – A substance on red blood cells that triggers an immune response. (Across)