The thymus and bone marrow are.....
- AProteins that form the immune system
- BSecondary lymphoid organs
- COrgans where blood cells are produced and matured
- DBoth $A$ and $C$
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Which types of cells are produced during the clonal selection of $B$-cells?
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View SolutionWhich of the following is a physiological barrier?
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View SolutionMatch the following barriers of innate immunity with their respective examples and select the correct option:
List-$I$ (Barrier) List-$II$ (Example) $A$. Physical barrier $i$. Skin $B$. Physiological barrier $ii$. Interferons $C$. Cellular barrier $iii$. Mucus coating $D$. Cytokine barrier $iv$. Saliva in mouth
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| $B$. Physiological barrier | $ii$. Interferons |
| $C$. Cellular barrier | $iii$. Mucus coating |
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