Haemoglobin first appears in which stage of erythropoiesis?
Once the proerythroblast has been formed, it divides multiple times, eventually forming many mature RBCs. The first-generation cells are called basophil erythroblasts because they stain with basic dyes; the cell at this time has accumulated very little hemoglobin.
Basophil erythroblast
Proerythroblast
Ohochromatic erythroblast
Polychromatophil erythroblast
General physiology