Immune System Following are the defenses of the colon except dense resident microbiota mucus fast flow rate sIgA dense resident microbiota mucus fast flow rate sIgA ANSWER DOWNLOAD EXAMIANS APP
Immune System CD8 surface antigen is present in none of these cytotoxic T cells suppresssor T cells both (a) and (b) none of these cytotoxic T cells suppresssor T cells both (a) and (b) 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 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 ANSWER DOWNLOAD EXAMIANS APP
Immune System Large parasites such as helminthes may be killed extracellularly by the action of neutrophils monocytes eosinophils basophils neutrophils monocytes eosinophils basophils ANSWER DOWNLOAD EXAMIANS APP
Immune System Chemically an antigen may be lipid polysaccharide any of these protein lipid polysaccharide any of these protein ANSWER DOWNLOAD EXAMIANS APP
Immune System Macrophages are professional antigen- presenting cells. The protein molecule through which they present antigen in human is CD8 HLA actin interleukin CD8 HLA actin interleukin ANSWER DOWNLOAD EXAMIANS APP
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