Q. 26 Where are B-cells and T-cells formed? How do they differ from each other?

Both type of lymphocytes and other cells of the immune system are produced in the bone marrow.

B and T-cells are different from each other in the following aspects

B-lymphocytes (B-cell)                    T-lymphocytes (T-cell)



They mature in bone                     They mature in thyrnus

marrow.                                             gland

They produce antibody                 They directly attack the

against antigen.                             antigen or attach B-cells to
                                                          produce antibody.

They do not respond to                 They respond to organ

organ transplantation,                   transplantation