The change of hemoglobin synthesis from minor to major in the course of erythroblast maturation.
D000818:Animals; D001853:Bone Marrow / Q000378:metabolism*; D001854:Bone Marrow Cells; D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D002845:Chromatography; D004920:Erythropoiesis / Q000502:physiology*; D006454:Hemoglobins / Q000096:biosynthesis*; D011166:Porphyrins / Q000096:biosynthesis; D011817:Rabbits; D012156:Reticulocytes / Q000378:metabolism
D002247:Carbon Isotopes; D006454:Hemoglobins; D011166:Porphyrins