| It is intriguing that crustaceans seem to express either hemoglobin or hemocyanin but not both proteins. |
| The focus of this paper is on the Crustacea, the class of Arthropoda that expresses both hemoglobin and hemocyanin. |
| Sickle cell erythrocytes have decreased oxygen affinity and increased unsaturated hemoglobin in the arterial blood. |
| The key, she believes, may be the iron content of the blood and muscle proteins hemoglobin and myoglobin. |
| Counseling regarding the trait is important because the hemoglobin gene can be passed on to a carrier's child. |
| However, if the sickle hemoglobin S is combined with the target cell, some mild to moderate anemia may occur. |
