Immune System Which of the following is correct for CD8 T cells? CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells CD8 T cells only recognize virus-infected cells CD8 T cells can kill individual virus-infected cells in a contact dependent fashion In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells CD8 T cells only recognize virus-infected cells CD8 T cells can kill individual virus-infected cells in a contact dependent fashion In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only ANSWER DOWNLOAD EXAMIANS APP
Immune System Which is not an antigen-presenting cell (or APC)? Polymorphonuclear leukocyte (or PMN) B cell Dendritic cell All of these Polymorphonuclear leukocyte (or PMN) B cell Dendritic cell All of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Natural killer cells are involved in tumour rejection all of these allograft rejection non-specific killing of virus transformed target cells tumour rejection all of these allograft rejection non-specific killing of virus transformed target cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following statements is false regarding B cells? B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow B cells synthesize antibodies and put them on their cell surface B cells can undergo class switching and produce a different antibody type B one marrow stem cells migrate to the thymus and develop into B cells B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow B cells synthesize antibodies and put them on their cell surface B cells can undergo class switching and produce a different antibody type B one marrow stem cells migrate to the thymus and develop into B cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Immunity is not long lasting to influenza whooping cough mumps diphtheria influenza whooping cough mumps diphtheria ANSWER DOWNLOAD EXAMIANS APP
Immune System Large parasites such as helminthes may be killed extracellularly by the action of eosinophils monocytes basophils neutrophils eosinophils monocytes basophils neutrophils ANSWER DOWNLOAD EXAMIANS APP
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