Research Article

Analysis of a Larger SNP Dataset from the HapMap Project Confirmed That the Modern Human A Allele of the ABO Blood Group Genes Is a Descendant of a Recombinant between B and O Alleles

Figure 2

The location of SNP sites on the human ABO blood group genes obtained by the HapMap Project. A dashed line indicates Δ261, and blue vertical lines indicate the two critical sites that determine the blood group A and B specificities. The SNP number is shown in the Supplementary Material.
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