Immune System Macrophages are professional antigen- presenting cells. The protein molecule through which they present antigen in human is HLA actin CD8 interleukin HLA actin CD8 interleukin ANSWER DOWNLOAD EXAMIANS APP
Immune System Natural killer cells are involved in tumour rejection non-specific killing of virus transformed target cells allograft rejection all of these tumour rejection non-specific killing of virus transformed target cells allograft rejection all of these ANSWER DOWNLOAD EXAMIANS APP
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 The role of the M cell is to pass bacteria or virus to underlying macrophages for processing and presentation of antigen trap virus in mucus and prevent entry induce apoptosis in virus-infected small intestinal epithelia cells they use their cilia to propel mucus out of the small intestine pass bacteria or virus to underlying macrophages for processing and presentation of antigen trap virus in mucus and prevent entry induce apoptosis in virus-infected small intestinal epithelia cells they use their cilia to propel mucus out of the small intestine ANSWER DOWNLOAD EXAMIANS APP
Immune System Following are the defenses of the colon except sIgA fast flow rate mucus dense resident microbiota sIgA fast flow rate mucus dense resident microbiota ANSWER DOWNLOAD EXAMIANS APP
Immune System Chemically an antigen may be polysaccharide protein lipid any of these polysaccharide protein lipid any of these ANSWER DOWNLOAD EXAMIANS APP
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