what is free hemoglobin binding in plasma, what are the cell types giving rise to RBC's in bone marrow, what are the adult Hb composition and other hemoglobin forms. What are the organ hematopoeises. What are the normal bone marrow composition, What are the main source of ATP in RBC's, What are the role of 2,3-BPG, whar are bohr effect, What are the effect of hypoxia on erythropoieses, what are the hereditary spherocytosis, what is elliptocytosis.