CD4 lymphocytes (helper cells) recognize -
Class II MHC antigens have single locus as HLA-D. - these antigens have fuher 3 loci: DR, DQ, and DP. Class II MHC is identified by B cells and CD4+ cells.( T helper cells). ReReference:arsh mohan textbook pathology, 7th edition, pg no:49 <\p>
HLA class I antigen
HLA class II antigen
HLA class III antigen
None of the above
Immunology