CD8 surface antigen is present in none of these suppresssor T cells both (a) and (b) cytotoxic T cells TRUE ANSWER : ? YOUR ANSWER : ?
Large parasites such as helminthes may be killed extracellularly by the action of monocytes basophils neutrophils eosinophils TRUE ANSWER : ? YOUR ANSWER : ?
Cytotoxic T-cells can be recognized by which of the following cell surface marker? CD9 CD4 CD8 CD7 TRUE ANSWER : ? YOUR ANSWER : ?
Treatment with bacterial endotoxins results blast formation in monocytes B cells T cells none of these TRUE ANSWER : ? YOUR ANSWER : ?
Major Histo Compatibility Complex (MHC) is a collection of genes arrayed on chromosome 21 in man, chromosome 6 in mice chromosome 6 in man, chromosone 21 in mice chromosome 17in man, chromosome 6 in mice chromosome 6 in man, chromosome 17 in mice TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is correct for isoantigens? They are antigens found in all members of a species They are antigens found in some members of a species They are antigens found in all members of different species They are antigens found in some members of different species TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements is false regarding B cells? 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 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following expresses CD3 surface antigen? Granulocytes Monocytes B cells T cells TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is correct for CD8 T 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 cell receptor recognizes epitopes that are also commonly recognized by B cells CD8 T cells can kill individual virus-infected cells in a contact dependent fashion TRUE ANSWER : ? YOUR ANSWER : ?