Immune System Polymorphonuclear leukocytes (or PMNs) All of these are a type of phagocyte that can engulf and kill bacteria can be attracted to the site of an infection following activation of complement are derived from bone marrow stem cells All of these are a type of phagocyte that can engulf and kill bacteria can be attracted to the site of an infection following activation of complement are derived from bone marrow stem cells ANSWER DOWNLOAD EXAMIANS APP
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, chromosome 17 in mice chromosome 6 in man, chromosone 21 in mice chromosome 21 in man, chromosome 6 in mice chromosome 17in man, chromosome 6 in mice chromosome 6 in man, chromosome 17 in mice chromosome 6 in man, chromosone 21 in mice ANSWER DOWNLOAD EXAMIANS APP
Immune System Which is not an antigen-presenting cell (or APC)? Polymorphonuclear leukocyte (or PMN) All of these B cell Dendritic cell Polymorphonuclear leukocyte (or PMN) All of these B cell Dendritic cell ANSWER DOWNLOAD EXAMIANS APP
Immune System Macrophages are professional antigen- presenting cells. The protein molecule through which they present antigen in human is CD8 actin HLA interleukin CD8 actin HLA interleukin 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 Large parasites such as helminthes may be killed extracellularly by the action of monocytes neutrophils eosinophils basophils monocytes neutrophils eosinophils basophils ANSWER DOWNLOAD EXAMIANS APP
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