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Which of the following mediate the CMI?

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in Biology – Class 12 by (271k points)
Which of the following mediate the CMI?

(a) T-lymphocytes

(b) Red blood corpuscles

(c) White Blood cells

(d) B-lymphocytes

The question was posed to me in an interview for internship.

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

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Correct choice is (a) T-lymphocytes

Explanation: T-lymphocytes mediate CMI. T-cells/T-lymphocytes are long-lived small cells which have 100,000 receptor sites on their surface for binding antigens. T-cells themselves do not secrete antibodies but help B-cells to produce them.

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