Immune System Which of the following(s) is/are the determinants of antigenicity? Chemical nature Foreignness Size of the antigen All of these Chemical nature Foreignness Size of the antigen All 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 can undergo class switching and produce a different antibody type 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 one marrow stem cells migrate to the thymus and develop into B cells B cells can undergo class switching and produce a different antibody type 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 ANSWER DOWNLOAD EXAMIANS APP
Immune System Macrophages are professional antigen- presenting cells. The protein molecule through which they present antigen in human is CD8 interleukin actin HLA CD8 interleukin actin HLA ANSWER DOWNLOAD EXAMIANS APP
Immune System Which is not an antigen-presenting cell (or APC)? B cell All of these Polymorphonuclear leukocyte (or PMN) Dendritic cell B cell All of these Polymorphonuclear leukocyte (or PMN) Dendritic cell ANSWER DOWNLOAD EXAMIANS APP
Immune System CD8 surface antigen is present in none of these cytotoxic T cells suppresssor T cells both (a) and (b) none of these cytotoxic T cells suppresssor T cells both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following is correct for isoantigens? They are antigens found in some members of different species They are antigens found in some members of a 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 different species They are antigens found in some members of a species They are antigens found in all members of a species They are antigens found in all members of different species ANSWER DOWNLOAD EXAMIANS APP
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