Q. Alum is an effective adjuvant because it

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Q. A secondary antibody is an antibody that

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Q. The immunoglobulin fold is

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Q. Antibodies of the IgG class

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Q. Each IgA antibody molecule consists of

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Q. Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct?

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Q. Monoclonal antibodies were first produced by

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Q. A polyclonal antibody response

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Q. During the lag period between antigen contact and detection of adaptive immunity,

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Q. Lymphocytes are activated by antigen in the

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Q. A pathogen can be a (n)

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Q. CD antigens

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Q. A virus vaccine that can activate cytotoxic T cells must contain

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Q. The ability of an antigen to induce an immune response does not depend on the antigen's

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Q. The antibiotic penicillin is a small molecule that does not induce antibody formation. However, penicillin binds to serum proteins and forms a complex that in some people induces antibody formation resulting in an allergic reaction. Penicillin is therefore

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Q. For specific antigen recognition by T cells,

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Q. Antigen, when injected in the body activates its specific lymphocytes in the

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Q. A molecule that can be covalently linked to a non-immunogenic antigen to make it an immunogen is called a (n)

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Q. Which of the following is incorrect with regard to antigen epitopes?

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Q. Very low doses of antigen may induce

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