A) An individual produces only one specific MHC glycoproteins.
B) MHC glycoproteins normally are found only on lymphocytes and macrophages.
C) RBC blood groups are based on MHC antigens
D) Antigens are presented to T-cells on MHC glycoproteins.
Correct Answer: D
Solution :
[d] The surface of most vertebrates cells possess glycoprotein produced by a group of genes called the Major Histocompatibility Complex (BHC). These glycoproteins are called MHC proteins or, specifically in humans, human leucocyte antigens (HLA). Antigens are present on MHC proteins. Cells of the body have MHC proteins on their surfaces that identify them as "self? cells. Immune system cells do not attack these cells. Foreign cells or microbes have antigens on their surfaces. B cells are able to bind directly to free antigens in the body and initiate an attack on a foreign invader. T-cells can bind to antigens only after the antigens are processed and complexed with MHC proteins on the surface of an antigen-presenting cell.
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