Immune System Which is not an antigen-presenting cell (or APC)? Dendritic cell Polymorphonuclear leukocyte (or PMN) B cell All of these Dendritic cell Polymorphonuclear leukocyte (or PMN) B cell All of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Lysozyme is present in sweat urine saliva Cerebro spinal fluid (CSF) sweat urine saliva Cerebro spinal fluid (CSF) ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following statements is false regarding B cells? B one marrow stem cells migrate to the thymus and develop into B cells B cells can undergo class switching and produce a different antibody type B cells synthesize antibodies and put them on their cell surface B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow B one marrow stem cells migrate to the thymus and develop into B cells B cells can undergo class switching and produce a different antibody type B cells synthesize antibodies and put them on their cell surface B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow 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 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) By rearrangements of the DNA encoding the variable regions of the heavy and light chains ANSWER DOWNLOAD EXAMIANS APP
Immune System Cytotoxic T-cells can be recognized by which of the following cell surface marker? CD8 CD9 CD4 CD7 CD8 CD9 CD4 CD7 ANSWER DOWNLOAD EXAMIANS APP
Immune System Immunity is not long lasting to whooping cough mumps diphtheria influenza whooping cough mumps diphtheria influenza ANSWER DOWNLOAD EXAMIANS APP
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