a. A monoclonal antibody specific for b₂-microglobulin can be used to detect both class I MHC K and D molecules on the surface of cells.

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b. Antigen-presenting cells express both class I and Class II MHC molecules on their membrane.

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c. Class III MHC genes encode membrane-bound proteins.

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d. In outbred populations, an individual is more likely to be histocompatible with one of its parents than with its siblings.

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e. Class II MHC molecules typically bind to slightly longer peptides than do class I molecules.

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f. All cells express class I H molecules.

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g. The majority of the peptides displayed by class I and class II MHC molecules on cells are derived from self-proteins.

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