Reticular networks in the lymph nodes:

S1P1 receptor is upregulated by naïve T cells and B cells after 12–18 hours if they fail to encounter antigen in the lymph node.  This means all of the following EXCEPT:

A knockout of which of the following genes results in the inability to form germinal centers?

Activation of naïve B cells is a two-step process, during which:

The role of cell-mediated immunity is:

Which of the following is NOT a means of generating diversity in the variable regions of the T cell receptor genes?

Conditions in which the immune system attacks self-antigens are known as:

Which of the following mechanisms of mutagenesis via AID activity is possible?

Which of the following is recognized by the innate immune system and triggers an immune response that will produce antiviral cytokines and trigger effector molecules?

Which type of T helper cell inhibits inflammation?