Immune System
Which of the following(s) is/are the determinants of antigenicity?

Foreignness
All of these
Chemical nature
Size of the antigen

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP

Immune System
Polymorphonuclear leukocytes (or PMNs)

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

ANSWER DOWNLOAD EXAMIANS APP