B-cells

T-cells

1. They are produced in cells of bone marrow and remain there and later migrate to lymphoid tissue.

2. These cells produce antibodies.

3. They are part of humoral immune system.

4. They act against viruses and bacteria in the blood.

5.B-cells do not react against the transplant.

1. They are produced in cells of bone marrow and migrate to the thymus and differentiate under the influence of thymus.

2. These cells do not produce antibodies.

3. They are part of cell mediated immune system.

4. They act against pathogenic microorganism, in cells.

5. T-cells are responsible for the rejection of the transplant.