Immune System Which of the following is correct for isoantigens? They are antigens found in all members of a species They are antigens found in all members of different species They are antigens found in some members of a species They are antigens found in some members of different species They are antigens found in all members of a species They are antigens found in all members of different species They are antigens found in some members of a species They are antigens found in some members of different species ANSWER DOWNLOAD EXAMIANS APP
Immune System Following are the defenses of the colon except dense resident microbiota mucus sIgA fast flow rate dense resident microbiota mucus sIgA fast flow rate 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 synthesize antibodies and put them on their cell surface 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 one marrow stem cells migrate to the thymus and develop into B cells B cells synthesize antibodies and put them on their cell surface 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 ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following expresses CD3 surface antigen? B cells Granulocytes T cells Monocytes B cells Granulocytes T cells Monocytes 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 they use their cilia to propel mucus out of the small intestine trap virus in mucus and prevent entry induce apoptosis in virus-infected small intestinal epithelia cells pass bacteria or virus to underlying macrophages for processing and presentation of antigen they use their cilia to propel mucus out of the small intestine trap virus in mucus and prevent entry induce apoptosis in virus-infected small intestinal epithelia cells ANSWER DOWNLOAD EXAMIANS APP
Immune System CD8 surface antigen is present in suppresssor T cells none of these both (a) and (b) cytotoxic T cells suppresssor T cells none of these both (a) and (b) cytotoxic T cells ANSWER DOWNLOAD EXAMIANS APP
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