Immune System
Which is not an antigen-presenting cell (or APC)?

All of these
B cell
Dendritic cell
Polymorphonuclear leukocyte (or PMN)

ANSWER DOWNLOAD EXAMIANS APP

Immune System
T cell receptors (or TCR) on CD4+ T cells

are secreted out into the environment to bind antigens
recognize peptides not associated with MHC molecules
recognize peptides associated with MHC class I molecules
recognize peptides associated with MHC class II molecules

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 some members of different species
They are antigens found in all members of a species

ANSWER DOWNLOAD EXAMIANS APP