title: Pi phenotypes in North American workers: racial differences and comparisons with reported frequencies.
abstract: The distribution of Pi phenotypes among Caucasian and Asian workers in British Columbia, Canada were found to differ significantly. Among Caucasians the frequency of the M allele was 0.9428, very similar to frequencies reported in other North American Caucasian populations. Among Asians only the M allele was found, further confirming the rarity of other alleles in such populations. The distribution of phenotypes in the Caucasian population agreed with the predictions of the Hardy-Weinberg law.
mesh_terms: D000328:Adult; D000368:Aged; D000483:Alleles; D001208:Asia / Q000208:ethnology; D001955:British Columbia; D002648:Child; D005787:Gene Frequency; D006801:Humans; D007223:Infant; D008297:Male; D010641:Phenotype; D044469:Racial Groups; D014481:United States; D000515:alpha 1-Antitrypsin / Q000235:genetics*
chemical_list: D000515:alpha 1-Antitrypsin