Immune System Which of the following is correct for CD8 T 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 CD8 T cells only recognize virus-infected cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following expresses CD3 surface antigen? Monocytes T cells Granulocytes B cells Monocytes T cells Granulocytes B cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Which is not an antigen-presenting cell (or APC)? Polymorphonuclear leukocyte (or PMN) Dendritic cell B cell All of these Polymorphonuclear leukocyte (or PMN) Dendritic cell B cell All of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Cytotoxic T-cells can be recognized by which of the following cell surface marker? CD8 CD9 CD4 CD7 CD8 CD9 CD4 CD7 ANSWER DOWNLOAD EXAMIANS APP
Immune System Treatment with bacterial endotoxins results blast formation in T cells B cells monocytes none of these T cells B cells monocytes none of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following statements is false regarding B cells? 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 can undergo class switching and produce a different antibody type B cells synthesize antibodies and put them on their cell surface 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 can undergo class switching and produce a different antibody type B cells synthesize antibodies and put them on their cell surface ANSWER DOWNLOAD EXAMIANS APP
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