Direct Antigen Presentation Occurring During Allogeneic Graft Rejection Occurs When

question 4

Multiple Choice

Direct antigen presentation occurring during allogeneic graft rejection occurs when:

• A) Donor APCs present antigen to the donor T cells
• B) A recipient's T cells recognize donor cells as foreign
• C) Donor antibodies bind to recipient cell surface molecules
• D) A recipient's T cells recognize foreign antigen processed on the recipient's APCs

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Definitions:

Enforceable Promise

A commitment in a contract that is legally binding and can be upheld in court.

Substituted Contract

An agreement made to replace a prior contract, which was agreed upon by all original parties and extinguishes the obligations of the first agreement.

Legal Detriment

A loss or disadvantage suffered by a party who acts or refrains from acting in a legal transaction.

Pre-existing Moral Obligation

A duty that arises from moral considerations or societal expectations rather than a legal contract.