え？古畑の分布図だから東西でA型が違うんだけど？？捏造いい加減にしてくれるからA型直毛のどもり素人童貞く〜〜〜んｗｗほらソース早くｗｗ it has been noted that the distribution of the ABO blood group gene frequencies in the Japanese Islands is non-random and that a feeble but well-defined cline in the frequency of the A allele in particu- lar exists along its length (TANAKA 1959, FURUHATA et al 1966). https://www.jstage.jst.go.jp/article/ase1911/88/2/88_2_109/_pdf
