title: Frequency and heredity of ADA types in the Polish population.
abstract: Phenotypes of the ADA system were determined in a population sample of n = 208. Two ADA phenotypes were encountered: ADA 1-1 with a frequency of 0-82, and ADA 2-1 with a frequency of 0-18. Gene frequencies were: ADA1 = 0-911 and ADA2 = 0-089. Distribution of phenotypes in 9 families with 28 children and in 93 mother-child pairs was consistent with the hypothesis of heredity of the ADA group system.
mesh_terms: D000243:Adenosine Deaminase / Q000097:blood*; D004912:Erythrocytes / Q000201:enzymology; D005787:Gene Frequency; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D009700:Nucleoside Deaminases / Q000097:blood*; D010641:Phenotype; D011044:Poland
chemical_list: D009700:Nucleoside Deaminases; D000243:Adenosine Deaminase