The term “tolerance” refers to responses observed which include long-term graft acceptance without the need for chronic immunosuppression. There are a variety of specific ways in which T and B lymphocytes can be tolerant or nonresponsive to antigen. Which of the following is/are mechanisms of tolerance?
A. Clonal abortion
B. Clonal deletion
C. Clonal anergy
D. Suppression
Answer:A
The term “tolerance” refers to responses observed which include long-term graft acceptance without the need for chronic immunosuppression. There are a variety of specific ways in which T and B lymphocytes can be tolerant or nonresponsive to antigen. Which of the following is/are mechanisms of tolerance?
A. Clonal abortion B. Clonal deletion C. Clonal anergy D. Suppression