Practice question
Question
Which of the following statement(s) is/are CORRECT for antigen activated effector T cells? P. CD4+ cells make contact with macrophages and stimulate their microbicidal activity Q. CD4+ cells make contact with B cells and stimulate them to differentiate into plasma cells R. CD8+ cells make contact with B cells and stimulate them to differentiate into plasma cells S. CD8+ cells make contact with virus infected cells and kill them
Explanation
Q only is correct because it matches established cell principles where q only represents the functional mechanism. Alternatives such as Q and S only, P, Q and S only contradict experimental evidence and standard textbook descriptions.
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