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What is the life span of the memory B-cells of the immune system?

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in Biology – Class 12 by (271k points)
What is the life span of the memory B-cells of the immune system?

(a) A few days

(b) A few hours

(c) A few years

(d) A few years to whole life

I had been asked this question in unit test.

My question is taken from Human Health and Disease topic in chapter Human Health and Disease of Biology – Class 12

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Right choice is (d) A few years to whole life

Easiest explanation: The life span of the memory B-cells of the immune system is a few years to whole life. These memory cells do not produce antibodies but when the same pathogen attacks for the second time, that differentiate into effector cells.

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