title: Frequencies of atypical serum cholinesterase among Caucasians and Negroes from southern Brazil.
abstract: Frequencies of the CHE1*A allele were estimated on the basis of a sample of 999 Caucasians (1.5%) and 1,015 Negroids (0.84%) from Curitiba, Brazil. The frequency found in the Negroid subsample allows an estimate of 50 +/- 15% of Caucasoid admixture and an average gene flow in the white-black direction of the order of 5.6% per generation.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000483:Alleles; D044383:Black People; D001938:Brazil; D002648:Child; D002802:Cholinesterases / Q000097:blood / Q000172:deficiency / Q000235:genetics*; D005060:Europe; D005260:Female; D005787:Gene Frequency; D006801:Humans; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic; D014481:United States; D044465:White People; D001741:Black or African American
chemical_list: D002802:Cholinesterases