Final answer:
T cells recognize antigens by binding to major histocompatibility complex (MHC) proteins on an antigen-presenting cell such as a dendritic cell. This process is known as antigen presentation. If T cells fail to recognize this protein, they die by a process known as negative selection.
Step-by-step explanation:
T cells recognize antigens by binding to major histocompatibility complex (MHC) proteins on an antigen-presenting cell like a dendritic cell. This process is known as antigen presentation. If T cells fail to recognize this protein, they die by a process known as negative selection.