Immune System Natural killer cells are involved in allograft rejection tumour rejection non-specific killing of virus transformed target cells all of these allograft rejection tumour rejection non-specific killing of virus transformed target cells all of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Numerous antibodies can be prepared, against one antigen, each binds to unique epitopes. How is this antibody diversity generated? Antibody proteins can physically change their shape to bind different epitopes Both (a) and (b) By the combination of different heavy and light chains that form the antigen binding site By rearrangements of the DNA encoding the variable regions of the heavy and light chains Antibody proteins can physically change their shape to bind different epitopes Both (a) and (b) By the combination of different heavy and light chains that form the antigen binding site By rearrangements of the DNA encoding the variable regions of the heavy and light chains ANSWER DOWNLOAD EXAMIANS APP
Immune System Which is not an antigen-presenting cell (or APC)? All of these Polymorphonuclear leukocyte (or PMN) B cell Dendritic cell All of these Polymorphonuclear leukocyte (or PMN) B cell Dendritic cell ANSWER DOWNLOAD EXAMIANS APP
Immune System The role of the M cell is to trap virus in mucus and prevent entry 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 induce apoptosis in virus-infected small intestinal epithelia cells trap virus in mucus and prevent entry 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 induce apoptosis in virus-infected small intestinal epithelia cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following expresses CD3 surface antigen? Granulocytes Monocytes T cells B cells Granulocytes Monocytes T cells B cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Large parasites such as helminthes may be killed extracellularly by the action of eosinophils basophils neutrophils monocytes eosinophils basophils neutrophils monocytes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS