Which antibody class is primarily responsible for allergic reactions?

What is the primary role of T cells in the adaptive immune system?

In a viral infection, how do cytotoxic T cells specifically target and kill infected host cells?

Which of the following is NOT a component required for T cell activation?

What is the primary role of the major histocompatibility complex (MHC) in the immune system?

Which sequence of events correctly describes the MHC class 1 antigen presentation pathway?

How can knowledge of MHC and antigen presentation be applied in organ transplantation?

What is the primary function of pattern recognition receptors in the immune system?

A dendritic cell presents an antigen to a T helper cell. What is the expected outcome of this interaction?

Which type of T helper cell is primarily involved in activating B cells?