At what stage of erythropoiesis does Hemoglobin appear?

a pronormoblast, also commonly called an proerythroblast or a rubriblast. This becomes a basophilic or early normoblast, also commonly called an erythroblast, then. a polychromatophilic or intermediate normoblast, then. an ohochromatic or late normoblast. At this stage the nucleus is expelled before the cell becomes. Ref: guyton and hall textbook of medical physiology 12 edition page number: 111,112,113