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Question

B- and T-cells required for immune system are produced in.

A
Bone marrow
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B
Liver
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C
Spleen
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D
Lymph nodes
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Solution

The correct option is D Bone marrow
  • The acquired immunity involves two types of cells: B-cells and T-cells.T cells are involved in cell-mediated immunity, whereas B cells are primarily responsible for humoral immunity (relating to antibodies).
  • Like all blood cells, B(B lymphocyte)- and T-cells9T-lymphocyte) are produced in the bone marrow. B-cells mature in the bone marrow and T-cells travel through the bloodstream to the thymus gland and mature in the thymus gland.
  • Hence B- and T-cells required for the immune system are produced in Bone marrow.
  • So, the correct answer is 'Bone marrow'.

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