Question

the major histocompatibility complex is a set of cell surface proteins. it is important in the matching of potential organ or bone marrow donors with recipients. why? a because of its role in passive and active transport in the cell membrane, especially phagocytosis b because of its role in determining self vs. non - self c because of its role in activating cell surface receptors and enzymes d because of its role in the production of antigens and antibodies

Explanation:

The major histocompatibility complex (MHC) helps the immune - system distinguish between self and non - self cells. In organ or bone marrow transplantation, matching MHC between donor and recipient is crucial to avoid the recipient's immune system attacking the donor tissue as foreign.

Answer:

B. because of its role in determining self vs. non - self