Question: A pathogen can be a (n) [A]. agent that causes a disease [B]. virus [C]. bacteria [D]. All of these Answer: Option D Explanation: No answer description available for this question.

Question: CD antigens [A]. allow leukocytes to recognize antigen [B]. are each expressed on only one cell type [C]. are expressed on immune cells to mark them for separation [D]. function as receptors for cytokine and CAMs Answer: Option D…

Question: Which of the following is incorrect with regard to antigen epitopes? [A]. An epitope may be shared by two different antigens [B]. A protein molecule usually contains multiple epitopes [C]. B cells bind only processed antigen epitopes [D]. Epitopes…

Question: A virus vaccine that can activate cytotoxic T cells must contain [A]. a high dose of virus particles [B]. an adjuvant to stimulate T cell division [C]. live virus [D]. virus peptides Answer: Option C Explanation: No answer description…

Question: Very low doses of antigen may induce [A]. hypersensitivity [B]. immunological ignorance [C]. low zone tolerance [D]. low zone immunity Answer: Option C Explanation: No answer description available for this question.

Question: A molecule that can be covalently linked to a non-immunogenic antigen to make it an immunogen is called a (n) [A]. adjuvant [B]. carrier [C]. hapten [D]. mitogen Answer: Option B Explanation: No answer description available for this question.

Question: Lymphocytes are activated by antigen in the [A]. blood stream [B]. bone marrow [C]. liver [D]. lymph nodes Answer: Option D Explanation: No answer description available for this question.

Question: For specific antigen recognition by T cells, [A]. antigen is bound by a T cell membrane antibody [B]. denaturation of antigen does not reduce epitope recognition [C]. MHC molecules are not required [D]. antigen exposure during T cell maturation…

Question: During the lag period between antigen contact and detection of adaptive immunity, [A]. antigen is hidden from the immune system in macrophages [B]. innate immune effectors are eliminating antigen [C]. innate immunity blocks the activation of adaptive immune effector…

Question: Antigen, when injected in the body activates its specific lymphocytes in the [A]. blood circulation [B]. draining lymph nodes [C]. MALT (mucosa associated [D]. spleen lymphoid tissue Answer: Option B Explanation: No answer description available for this question.