علوم زیستی

cell > blood cell > erythrocyte > hemoglobin > hemoglobin A

... > animal anatomy > fluids ,bodily secretions and exudates > body fluid > blood > blood cell > erythrocyte > hemoglobin > hemoglobin A

... > animal anatomy > circulatory system > cardiovascular system > blood > blood cell > erythrocyte > hemoglobin > hemoglobin A

... > biochemicals > protid > protein > conjugated protein > chromoprotein > hemoglobin > hemoglobin A

... > biochemicals > protid > protein > globular protein > hemoglobin > hemoglobin A