Immune System Which of the following proteins would not need localization signal? A cytosolic protein A nuclear protein A cell surface protein A protein bound to the endoplasmic reticulum (ER) membrane A cytosolic protein A nuclear protein A cell surface protein A protein bound to the endoplasmic reticulum (ER) membrane 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 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 Cytotoxic T-cells can be recognized by which of the following cell surface marker? CD9 CD7 CD8 CD4 CD9 CD7 CD8 CD4 ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following is correct for CD8 T cells? CD8 T cells only recognize virus-infected cells CD8 T cells can kill individual virus-infected cells in a contact dependent fashion CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only CD8 T cells only recognize virus-infected cells CD8 T cells can kill individual virus-infected cells in a contact dependent fashion CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only 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 I molecules recognize peptides associated with MHC class II molecules recognize peptides not associated with MHC molecules are secreted out into the environment to bind antigens recognize peptides associated with MHC class I molecules recognize peptides associated with MHC class II molecules recognize peptides not associated with MHC molecules are secreted out into the environment to bind antigens ANSWER DOWNLOAD EXAMIANS APP
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