T cells selected on a b haplotype thymus would be able to respond to antigen presenting on which of the following haplotype antigen presenting cells?

Question

Quizplus · Accepted Answer

T cells selected on a b haplotype thymus are educated to recognize antigens presented by MHC molecules of the b haplotype. However, they can also recognize antigens on a x b haplotype antigen-presenting cells due to the mixed haplotype expressing both a and b MHC molecules. Thus, they can respond to antigen-presenting cells of haplotypes a, b, and a x b.

T Cells Selected on a B Haplotype Thymus Would Be