Which of the following is crucial to activation of the adaptive immune response?
A) memory cells
B) presentation of MHC (major histocompatibility complex)-antigen complex on a cell surface
C) somatic hypermutation
D) phagocytosis of antibody-antigen complex by macrophages in the blood (the humoral response)

Question

Quizplus · Accepted Answer

Presentation of MHC-antigen complex on a cell surface is crucial for activation of the adaptive immune response. This is because T cells can only recognize antigens that are presented in association with the MHC molecules on the surface of antigen-presenting cells. The MHC-antigen complex serves as a signal to activate T cells, which then orchestrate the immune response.

Which of the Following Is Crucial to Activation of the Adaptive