Meiosis vs. Mitosis: Why B and T Cells Are Not Produced by Meiosis

Meiosis is the specialized cell division that produces germ‑line cells (eggs and sperm), halving the chromosome number from diploid (2n) to haploid (n).

B cells and T cells, however, are somatic cells—not germ‑line cells. They arise through mitosis, the process by which somatic cells divide to create two genetically identical daughter cells. This distinction is fundamental to immunology and genetics.