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Erythropoetin

In type IV hy...

Question

In type IV hypersensitivity reaction, the T-cells recognise the antigen presented by

A

MHC II

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B

MHC I

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C

Monocytes

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D

Both A and B

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Solution

The correct option is A MHC II
Type IV hypersensitivity also called delayed type hypersensitivity is a type of cell-mediated response. CD4+ helper T cells recognize antigen in a complex with Class II major histocompatibility complex. Thus the correct answer is option A.

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Similar questions

Q. Arrange the following statements in sequential order regarding hypersensitivity reaction IV.
a) Haptens combine with skin proteins to form the haptens-protein carrier.
b) Antigen presenting cells present the hapten-carrier complex to the T-cells.
c) T cells recognise the hapten-carrier complex and release lymphokines or interleukins.
d) Antigen presenting cells APC carry this hapten-carrier complex to the lymphatics.

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