Immune System Numerous antibodies can be prepared, against one antigen, each binds to unique epitopes. How is this antibody diversity generated? By the combination of different heavy and light chains that form the antigen binding site Antibody proteins can physically change their shape to bind different epitopes Both (a) and (b) By rearrangements of the DNA encoding the variable regions of the heavy and light chains By the combination of different heavy and light chains that form the antigen binding site Antibody proteins can physically change their shape to bind different epitopes Both (a) and (b) By rearrangements of the DNA encoding the variable regions of the heavy and light chains ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following expresses CD3 surface antigen? B cells Monocytes T cells Granulocytes B cells Monocytes T cells Granulocytes ANSWER DOWNLOAD EXAMIANS APP
Immune System T cell receptors (or TCR) on CD4+ T cells recognize peptides associated with MHC class II molecules recognize peptides associated with MHC class I molecules are secreted out into the environment to bind antigens recognize peptides not associated with MHC molecules recognize peptides associated with MHC class II molecules recognize peptides associated with MHC class I molecules are secreted out into the environment to bind antigens recognize peptides not associated with MHC molecules ANSWER DOWNLOAD EXAMIANS APP
Immune System Following are the defenses of the colon except dense resident microbiota sIgA fast flow rate mucus dense resident microbiota sIgA fast flow rate mucus ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following(s) is/are the determinants of antigenicity? Chemical nature All of these Foreignness Size of the antigen Chemical nature All of these Foreignness Size of the antigen ANSWER DOWNLOAD EXAMIANS APP
Immune System Treatment with bacterial endotoxins results blast formation in T cells B cells none of these monocytes T cells B cells none of these monocytes ANSWER DOWNLOAD EXAMIANS APP
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