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During primary immune responses,lymphocytes recognize antigen as nonself. APC which on pathogen cell surface membrane binds on T helper cell . The antigen triggers and send signal to B cell. B cell goes through cell selection and produces memory cell and plasma cell.These memory cells and plasma cells go through cell expansion by mitosis and produce more memory cells and plasma cells.

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AQA Biology AS Antibodies Flashcards | Quizlet

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Start studying AQA Biology AS Antibodies. Learn vocabulary, terms, and more with flashcards, games, and other study tools.