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 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 ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following statements is false regarding B cells? B cells synthesize antibodies and put them on their cell surface B one marrow stem cells migrate to the thymus and develop into B cells 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 cells synthesize antibodies and put them on their cell surface B one marrow stem cells migrate to the thymus and develop into B cells 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 ANSWER DOWNLOAD EXAMIANS APP
Immune System Cytotoxic T-cells can be recognized by which of the following cell surface marker? CD4 CD7 CD9 CD8 CD4 CD7 CD9 CD8 ANSWER DOWNLOAD EXAMIANS APP
Immune System Passive immunization is done for enteric fever tuberculosis all of these diphtheria enteric fever tuberculosis all of these diphtheria ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following is correct for isoantigens? They are antigens found in all members of different species They are antigens found in some members of a species They are antigens found in all members of a species They are antigens found in some members of different species They are antigens found in all members of different species They are antigens found in some members of a species They are antigens found in all members of a species They are antigens found in some members of different species ANSWER DOWNLOAD EXAMIANS APP
Immune System Natural killer cells are involved in all of these non-specific killing of virus transformed target cells tumour rejection allograft rejection all of these non-specific killing of virus transformed target cells tumour rejection allograft rejection ANSWER DOWNLOAD EXAMIANS APP
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