<prompt> True statements are all, EXCEPT:Chromosome six harbours the gene for MHCGenes encoding compliments are located adjacent to class IMonocytes have MHC class II antigens on their surfacesClass III MHC does not encode complement  <response>: Answer is D Class III MHC does not encode complement: Class III MIIC encode complements of the component system. Genes coding for histocompatibility antigens are clustered on a small segment of chromosome 6. This cluster constitutes the Human MHC or Human Leucocytes Antigen HLA complex. Class I antigens: are expressed on all nucleated cells and platelets.Q encode cell surface glycoproteins.Q they are encoded by three closely related loci HLA-A, HLA-B, HLA-C.Q CD8 T cells widely express Class I HLA antigens.Q Class II antigens: are expressed on macrophages, B cells and T cells.Q encode cell surface glycoproteins.Q they have a single loci HLA-D with three surface loci DR, DQ, DP.Q Class III antigens: these encode complements of the complement system.Q Note: That class III molecules loci, are present in between the loci for class I and class II molecules, on the HLA complex. Thus they lie adjacent to both class I as well as class II molecules. 