♦️Stages of Mitosis and Meiosis
Mitosis
During cell division, the chromosomes are reproduced in such a way that all daughter cells are genetically identical to the parent cell. Without maintaining the same number & type of chromosomes, the daughter cells would not be viable.The process by which cells divide to create identical daughter cells is called mitosis.
Meiosis
A different process is used to produce the gametes or sex cells. The process is called meiosis & results in four unique, rather than two identical, daughter cells.
Ref📚Modern Blood Banking&Transfusion Practices book
🔷 RBC maturation🩸🩸🩸
🔹Erythrocyte maturation begins in the bone marrow(BM)with the early pronormoblast (also known as a proerythroblast).
🔹Maturation occurs within erythroid colonies in the BM, progressing to basophilic then polychromatophilic normoblasts, followed by orthochromic normoblasts with release of reticulocytes into the peripheral blood.
🔹Reticulocytes or young erythrocytes are larger in size than mature erythrocytes with gray cytoplasm due to the presence of RNA.
🔹Mature erythrocytes are salmon colored due to the presence of hemoglobin.
📚Source: Wolters Kluwer Health | Lippincott Williams & Wilkins