Immunodeficiency makes a person highly susceptible to infection. It is caused by

  • A
    Lack of $B-$cells
  • B
    Lack of $T-$cells
  • C
    Both $(a)$ and $(b)$
  • D
    None of the above

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It constitutes about $50$ percent of the lymphoid tissue in the human body.

Which of the following are the most abundant types of antibodies?

Why is an antibody molecule represented as $H_2L_2$?

Which of the following is not present in the structure of an antibody?

What is the full form of $MALT$?

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