Which of the following are included in primar | vedclass

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(B) Primary lymphoid organs are the sites where lymphocytes originate and/or mature and differentiate into antigen-sensitive lymphocytes. The two main

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Bone marrow,Thymus gland

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(B) Primary lymphoid organs are the sites where lymphocytes originate and/or mature and differentiate into antigen-sensitive lymphocytes. The two main primary lymphoid organs in humans are the $Bone 	ext{ } marrow$ and the $Thymus 	ext{ } gland$. In the bone marrow, all blood cells including lymphocytes are produced. The thymus is the site where $T$-lymphocytes mature. Therefore, the correct option is $B$.

Which of the following are included in primary lymphoid organs?

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