Abstract
A common polymorphism of human alpha fucosidase has been detected by the technique of isoelectric focusing on thin layer acrylamide gel. Family studies have shown that the three common phenotypes Fu 1, Fu 2, and Fu 2-1 represent homozygosity or heterozygosity for two autosomal codominat alleles, Fu1 and Fu2.Frequencies of the Fu1 and Fu2 alleles in the New York populations studied were .753 and .247 among whites and .926 and .074 among blacks, respectively.
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