| ACROSS | DOWN |
| 2 Color of erythropoietic bone marrow | 1 An almost mature RBC that has just lost its nucleus |
| 4 Along with hemolysis, a result of cross reaction | 3 Another word for bone barrow tissue |
| 6 The antigen that makes blood positive or negative | 5 These determine a person's blood type; also called 'agglutinogens' |
| 8 Released of this kidney-produced hormone is triggered by hypoxia | 7 The study of blood formation and function |
| 9 Immature RBCs still forming their hemoglobin | 11 This blood type lacks A or B antigens |
| 10 Color of adipose bone marrow | |
| 12 Production of red blood cells specifically | |
| 13 When a type A blood cell meets a type A antigen |