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
In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only
CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells

ANSWER DOWNLOAD EXAMIANS APP

Immune System
The role of the M cell is to

they use their cilia to propel mucus out of the small intestine
induce apoptosis in virus-infected small intestinal epithelia cells
trap virus in mucus and prevent entry
pass bacteria or virus to underlying macrophages for processing and presentation of antigen

ANSWER DOWNLOAD EXAMIANS APP