Which Statement Is True

question 13

Multiple Choice

Which statement is true?

• A) There is little polymorphism at MHC loci in humans.
• B) T cell receptors recognize antigenic fragments only when they are bound to an MHC molecule.
• C) T_C cell receptors bind directly to antigen.
• D) All nucleated cells express class II MHC proteins.
• E) T cells recognize antigens presented by the B cell receptor.

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