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Does MHC allow a T-cell to recognize any presented antigen?
1) True
2) False

1 Answer

4 votes

Final answer:

No, MHC molecules do not allow a T-cell to recognize any presented antigen. They present antigens to T-cells based on the type of MHC molecule. MHC I presents antigens to cytotoxic T-cells, while MHC II presents antigens to helper T-cells.

Step-by-step explanation:

No, MHC (Major Histocompatibility Complex) molecules do not allow a T-cell to recognize any presented antigen. MHC molecules are responsible for presenting antigens to T-cells, but the type of MHC molecule determines which T-cell can recognize the antigen. There are two classes of MHC molecules, MHC I and MHC II. MHC I molecules are found on all nucleated cells and present antigens to cytotoxic T-cells, while MHC II molecules are only found on macrophages, dendritic cells, and B-cells and present antigens to helper T-cells. Therefore, a T-cell can only recognize antigens presented with the appropriate MHC molecule, not any presented antigen.

User Tim Stack
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