(30) The textbook discusses human blood typing (ABO) from bothphenotypic and genotypic perspectives. If a particular red bloodcell exhibits both the cell surface antigens designatedglycoproteins A and B, we designated the blood type AB. This typeof genetics is an example of multiple alleles and which of thefollowing types of dominance?
(A) complete dominance (B) co-dominance
(C) partial dominance (D) non-dominance