Immune System Which is not an antigen-presenting cell (or APC)? Dendritic cell Polymorphonuclear leukocyte (or PMN) All of these B cell Dendritic cell Polymorphonuclear leukocyte (or PMN) All of these B cell ANSWER DOWNLOAD EXAMIANS APP
Immune System Polymorphonuclear leukocytes (or PMNs) are a type of phagocyte that can engulf and kill bacteria All of these are derived from bone marrow stem cells can be attracted to the site of an infection following activation of complement are a type of phagocyte that can engulf and kill bacteria All of these are derived from bone marrow stem cells can be attracted to the site of an infection following activation of complement ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following(s) is/are the determinants of antigenicity? All of these Size of the antigen Foreignness Chemical nature All of these Size of the antigen Foreignness Chemical nature ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following is correct for CD8 T cells? CD8 T cells only recognize virus-infected cells In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only CD8 T cells can kill individual virus-infected cells in a contact dependent fashion CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells CD8 T cells only recognize virus-infected cells In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only CD8 T cells can kill individual virus-infected cells in a contact dependent fashion CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells ANSWER DOWNLOAD EXAMIANS APP
Immune System CD8 surface antigen is present in both (a) and (b) none of these cytotoxic T cells suppresssor T cells both (a) and (b) none of these cytotoxic T cells suppresssor T cells ANSWER DOWNLOAD EXAMIANS APP
Immune System T cell receptors (or TCR) on CD4+ T cells recognize peptides associated with MHC class I molecules are secreted out into the environment to bind antigens recognize peptides not associated with MHC molecules recognize peptides associated with MHC class II molecules recognize peptides associated with MHC class I molecules are secreted out into the environment to bind antigens recognize peptides not associated with MHC molecules recognize peptides associated with MHC class II molecules ANSWER DOWNLOAD EXAMIANS APP
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