Erythropoiesis begins in the bone marrow and is regulated by erythropoietin (EPO). EPO is a glycoprotein that is primarily produced by interstitial fibroblasts in the kidney. Erythropoiesis begins with a hematopoietic stem cell that differentiates into a common myeloid progenitor and then into a megakaryocyte-erythroid progenitor; the subsequent differentiation results in a commitment to the erythroid lineage.

Question: Identify the missing stages of the process of erythropoiesis in the cover image. a – Orthochromatic erythroblast, b – Colony-forming unit-erythroid, c – Basophilic erythroblast a – Colony-forming unit-erythroid, b – Basophilic erythroblast, c – Orthochromatic erythroblast a – Colony-forming unit-erythroid, b – Orthochromatic erythroblast, c – Basophilic erythroblast a – Basophilic erythroblast, b – Orthochromatic erythroblast, c – Colony-forming unit-erythroid This…