Some antigens are serums. All serums are donors. All donors are serums. Some donors are not antigens. All antigens are not serums.
Some donors are antigens.
Some donors are not serums. If the Hardy-Weinberg law holds then Darwinian theory is false. If Darwinian theory is false then man is a naked ape. The Hardy-Weinberg law holds. Darwinian theory is not false.