Question : Given below is the diagram of human lymphatic system, where A, B, C and D are lymphoid organs. Select incorrect option regarding the lymphoid organs labelled as A, B, C and D.

Question : Given below is the diagram of human lymphatic system, where

1.	Question : Given below is the diagram of human lymphatic system, where A, B, C and D are lymphoid organs. Select incorrect option regarding the lymphoid organs labelled as A, B, C and D.
Answer» T cells mature in B. B and T cells UNDERGO maturation in C. B and T cells undergo proliferation and differentiation in A. B cells mature in D. Solution :A'-lymph nodes, 'B'-Thymus, 'C'-SPLEEN, 'D'-Bone marrow. Thymus and bone marrow are the primary LYMPHOID organs where maturation of T-cells and B-cells take place respectively. Lymbph nodes and spleen are the SECONDARY lymphoid orgnans where T-cells and B-cells undergo proliferation and differentiation.