Immune System Which of the following statements is false regarding B cells? B cells can undergo class switching and produce a different antibody type B one marrow stem cells migrate to the thymus and develop into B cells 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 cells can undergo class switching and produce a different antibody type B one marrow stem cells migrate to the thymus and develop into B cells 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 Large parasites such as helminthes may be killed extracellularly by the action of neutrophils basophils eosinophils monocytes neutrophils basophils eosinophils monocytes ANSWER DOWNLOAD EXAMIANS APP
Immune System CD8 surface antigen is present in suppresssor T cells cytotoxic T cells none of these both (a) and (b) suppresssor T cells cytotoxic T cells none of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Immune System Polymorphonuclear leukocytes (or PMNs) All of these are derived from bone marrow stem cells are a type of phagocyte that can engulf and kill bacteria can be attracted to the site of an infection following activation of complement All of these are derived from bone marrow stem cells are a type of phagocyte that can engulf and kill bacteria can be attracted to the site of an infection following activation of complement ANSWER DOWNLOAD EXAMIANS APP
Immune System Cytotoxic T-cells can be recognized by which of the following cell surface marker? CD7 CD9 CD4 CD8 CD7 CD9 CD4 CD8 ANSWER DOWNLOAD EXAMIANS APP
Immune System Lysozyme is present in sweat Cerebro spinal fluid (CSF) saliva urine sweat Cerebro spinal fluid (CSF) saliva urine ANSWER DOWNLOAD EXAMIANS APP
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