help with 30 Which of the following is true of clonal selection? a) The selectio

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help with 30

Which of the following is true of clonal selection? a) The selection process kills all but one type of lymphocyte in the body b) It picks a single immunoglobulin molecule from the 100,000 of them on the of a single B cell c) The antigen causes the body to generate a large number of lymphocytes tha respond to the same antigen d) It prevents immune responses from being too specific Us ?? memcry dependent humoral response? cell ingests and processes the antigen Which is true of a T-dependent humoral response? -Y M - a) The T helper (T (b) A fragment of antigen is attached to MHC class II and displayed to a TH c c) B cells are not needed for this type of response d) The T cell receptor attaches to an Immunoglobulin on the B cell surface 0. Which statement is true? Each B lymphocyte is specific for a certain antigen b) a) B cells have antigen-binding immuno?lobulins embedded in their plasma membranes c) B cells can present antigens to TH cells d) B cells can develop into plasma cells. e) All of the above are true St 31. Which statement is true? ls can't reexghie po - T cells a) A pure polysaccharide will be a T dependent antigen b) Newborn babies make antibodies only to T-independent antigens )The immune response of an infant to a conjugated polysaccharide is stro she would make to polysaccharide on a live bacterium d) Infants have functioning B cells, but T cells take about 2 years old to de e) Babies respond poorly to proteins, but make good humoral responses to 32. Thymic selection a) Destroys cells that came from outside the body. b) Destroys MHC molecules c) Activates B cells d) Destroys B cells that make antibodies against self. e) Destroys T cells that don't correctly recognize MHC self-molecules 33. Which is NOT true? Red blood cells a) All body cells have MHC class II antigens APCs include dendritic cells and macrophages c) Cytotoxic T lymphocytes (CTLs) can kill virus-infected body cells d) Cytokine storms can be induced by superantigens. e) Apoptosis kills a person's own body cells

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help with 30 Which of the following is true of clonal selection? a) The selectio

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