After the clearance of foreign antigen, the expanded T-cell population ________________(a) dies by apoptosis(b) increases in size(c) remains in the circulatory system(d) remains in lymph nodesI had been asked this question in an online quiz.This intriguing question comes from Immune Response topic in section Immune Response of Cell Biology

After the clearance of foreign antigen, the expanded T-cell population

1.	After the clearance of foreign antigen, the expanded T-cell population ________________(a) dies by apoptosis(b) increases in size(c) remains in the circulatory system(d) remains in lymph nodesI had been asked this question in an online quiz.This intriguing question comes from Immune Response topic in section Immune Response of Cell Biology
Answer» The correct CHOICE is (a) DIES by apoptosis To elaborate: After the clearance of foreign ANTIGEN, the expanded T-cell population dies by apoptosis and a SMALL population of memory T-cells remains for future contact with the same antigen.

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