Treatment with bacterial endotoxins results blast formation in B cells monocytes T cells none of these TRUE ANSWER : ? YOUR ANSWER : ?
Passive immunization is done for tuberculosis enteric fever all of these diphtheria TRUE ANSWER : ? YOUR ANSWER : ?
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 only recognize virus-infected cells 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 : ?
CD8 surface antigen is present in cytotoxic T cells both (a) and (b) suppresssor T cells none of these TRUE ANSWER : ? YOUR ANSWER : ?
Large parasites such as helminthes may be killed extracellularly by the action of monocytes eosinophils basophils neutrophils TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is correct for isoantigens? 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 TRUE ANSWER : ? YOUR ANSWER : ?
Major Histo Compatibility Complex (MHC) is a collection of genes arrayed on chromosome 6 in man, chromosome 17 in mice chromosome 17in man, chromosome 6 in mice chromosome 21 in man, chromosome 6 in mice chromosome 6 in man, chromosone 21 in mice TRUE ANSWER : ? YOUR ANSWER : ?
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 they use their cilia to propel mucus out of the small intestine induce apoptosis in virus-infected small intestinal epithelia cells TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following(s) is/are the determinants of antigenicity? Size of the antigen Chemical nature Foreignness All of these TRUE ANSWER : ? YOUR ANSWER : ?