Q. When oxygen binds to a heme-containing protein, the two open coordination bonds of Fe²⁺ are occupied by___________

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Q. Which of the following is not the function of helper T cells is ____________

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Q. Which of the following is a function of Macrophages?

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Q. Which of the following is a function of B lymphocytes?

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Q. Which of the following is a function of T lymphocytes?

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Q. The most abundant immunoglobulin is ____________

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Q. Which of the following is the largest immunoglobulin?

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Q. The antibody present in secretions like tears and saliva is ____________

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Q. Which of the following antibody first reaches the site of infection?

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Q. Where do T-lymphocytes develop into fully competent but not activated T-cells?

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Q. Which of the following is true?

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Q. IgG consists of ____________

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Q. Which of the following is a true statement?

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Q. The primary antibody of exocrine secretions is ____________

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Q. Which of the following is not a feature of secondary immune respone to an antigen when compared to the first immune response to the same antigen?

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Q. Which of the following presents antigenic peptide to T-cells in order to initiate an adaptive immune response?

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Q. Light band has which of the following filament protein?

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Q. Contractile protein of a muscle is __________

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Q. Which of the following contractile protein of skeletal muscle involve in ATPase activity?

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Q. The cross bridges involved in muscle contraction are located on the __________

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