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pogonyaev
3 years ago
7

REALLY NEED HELP

Biology
1 answer:
Liono4ka [1.6K]3 years ago
4 0
T cell activation is initiated by an activated B cell.

The B cell presents antigens on its MHC receptors. The T cell recognizes the antigen bound to the MHC. There are other cosignals that fully activate the at cells but the antigen on the MHC receptor on the B cell is where it all starts.
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