Question

Which statement about MHC I antigens is incorrect? A. The MHC I antigens are on all cells. B. MHC I antigens function to identify self from nonself. C. The genes that determine an individual’s MHC antigens are inherited. D. These are the antigens that must be "matched" between two individuals before successful organ transplantation can be done.

Answer 1

MCH I antigens are present in all nucleated cells and in platelets. The one responsible for the identification of self and nonself is HLA. MHC alleles are inhereted from the mother and father and are conveyed uniformly. So as rejection immunologically during a transplant will not happen, MHC antigens must be matched.

Answer - A. The MHC I antigens are on all cells.

Red blood cells does not possess MHC I.