title: [Distribution of ABO allele frequencies in the Cologne registration district (Nordrhein-Westfalen)].
abstract: The AB0 allele frequencies and their regional distribution have been studied in the administrative area of Köln, North Rhine-Westphalia. The B allele shows relatively high frequencies ( > 0.0800) on both sides of the river Rhein, in the eastern parts of the area and--separated from the Köln region by a region of lower B frequencies--in the Aachen region. The possible causes for the different B frequencies are discussed.
mesh_terms: D000017:ABO Blood-Group System / Q000235:genetics*; D000483:Alleles; D001782:Blood Donors; D005787:Gene Frequency / Q000235:genetics*; D005828:Genetics, Population; D005858:Germany; D006801:Humans; D010641:Phenotype
chemical_list: D000017:ABO Blood-Group System
vernacular_title: Zur Verteilung der ABO-Allelfrequenzen im Regierungsbezirk Köln (Nordrhein-Westfalen).