Immune System Major Histo Compatibility Complex (MHC) is a collection of genes arrayed on chromosome 21 in man, chromosome 6 in mice chromosome 17in man, chromosome 6 in mice chromosome 6 in man, chromosone 21 in mice chromosome 6 in man, chromosome 17 in mice chromosome 21 in man, chromosome 6 in mice chromosome 17in man, chromosome 6 in mice chromosome 6 in man, chromosone 21 in mice chromosome 6 in man, chromosome 17 in mice 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? 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 By the combination of different heavy and light chains that form the antigen binding site Both (a) and (b) 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 By the combination of different heavy and light chains that form the antigen binding site Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following is correct for CD8 T cells? CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only CD8 T cells can kill individual virus-infected cells in a contact dependent fashion CD8 T cells only recognize virus-infected cells CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only CD8 T cells can kill individual virus-infected cells in a contact dependent fashion CD8 T cells only recognize virus-infected cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following expresses CD3 surface antigen? T cells Granulocytes Monocytes B cells T cells Granulocytes Monocytes B cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Lysozyme is present in saliva sweat Cerebro spinal fluid (CSF) urine saliva sweat Cerebro spinal fluid (CSF) urine ANSWER DOWNLOAD EXAMIANS APP
Immune System Polymorphonuclear leukocytes (or PMNs) All of these can be attracted to the site of an infection following activation of complement are derived from bone marrow stem cells are a type of phagocyte that can engulf and kill bacteria All of these can be attracted to the site of an infection following activation of complement are derived from bone marrow stem cells are a type of phagocyte that can engulf and kill bacteria ANSWER DOWNLOAD EXAMIANS APP
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