Immune System Following are the defenses of the colon except fast flow rate sIgA dense resident microbiota mucus fast flow rate sIgA dense resident microbiota mucus ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following(s) is/are the determinants of antigenicity? Foreignness Chemical nature Size of the antigen All of these Foreignness Chemical nature Size of the antigen 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? 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 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 ANSWER DOWNLOAD EXAMIANS APP
Immune System Which is not an antigen-presenting cell (or APC)? Polymorphonuclear leukocyte (or PMN) Dendritic cell All of these B cell Polymorphonuclear leukocyte (or PMN) Dendritic cell All of these B cell ANSWER DOWNLOAD EXAMIANS APP
Immune System T cell receptors (or TCR) on CD4+ T cells recognize peptides associated with MHC class I molecules recognize peptides not associated with MHC molecules recognize peptides associated with MHC class II molecules are secreted out into the environment to bind antigens recognize peptides associated with MHC class I molecules recognize peptides not associated with MHC molecules recognize peptides associated with MHC class II molecules are secreted out into the environment to bind antigens ANSWER DOWNLOAD EXAMIANS APP
Immune System Cytotoxic T-cells can be recognized by which of the following cell surface marker? CD8 CD4 CD7 CD9 CD8 CD4 CD7 CD9 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS