Identify the correct group of primary lymphoi | vedclass

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(D) Primary lymphoid organs are the sites where lymphocytes originate and/or mature and differentiate into antigen-sensitive lymphocytes.In humans,the

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Thymus,Bone marrow

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(D) Primary lymphoid organs are the sites where lymphocytes originate and/or mature and differentiate into antigen-sensitive lymphocytes.In humans,the bone marrow and thymus are the primary lymphoid organs.In these organs,immature lymphocytes differentiate into antigen-sensitive lymphocytes.After maturation,the lymphocytes migrate to secondary lymphoid organs like the spleen,lymph nodes,tonsils,Peyer's patches of the small intestine,and the appendix,where they interact with the antigen and then proliferate to become effector cells.Therefore,the correct group of primary lymphoid organs is thymus and bone marrow.

Identify the correct group of primary lymphoid organs.

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Assertion $A$: Cell-mediated immunity is responsible for the rejection of organ transplants. Reason $R$: The body's immune system has the ability to differentiate between self and non-self. Which option is correct for Assertion $A$ and Reason $R$?

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