HLA-I is present on:
Ans. is 'a' i.e., All nucleated cells(Ref: Jawetz, 27th/e, p. 139)* HLA class I Ag - present on the surfaces of all nucleated cells.* HLA class II Ag - only on cells of immune system (macrophages, dendritic cells, activated T cells and B cells).
All nucleated cells
Only on cells of immune system
Only on B cells
Only on T cells
Immunology