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B-lymphocytes originate from the bone marrow whereas T-lymphocytes originate from
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- thymus
- bone marrow
- spleen
- liver
Correct Option: B
All T cells originate from haematopoietic stem cells in the bone marrow. B cells undergo their complete maturation in the thymus while, T cells during their early stages of maturation migrate to the thymus and then undergo a process of maturation. They are released as competent and mature T cells from Thymus.