In a sample of 539 Polish families, 1000 individuals (515 males and 485 females) were analysed to determine the distribution of whorl patterns on specific fingertips, to compare their frequencies in males and females, and to determine whether asymmetry of these dermatoglyphic pattern elements is genetically controlled. Whorls occur most commonly on digit VI on both hands and in both sexes. The difference between males and females for mean values of occurrence is not significant. Using the bimanual difference between hands (right minus left), the digital asymmetry was determined, and correlations with asymmetrical occurrence of whorls was made between parents and children, and between sibs, in all combinations. In each case, there was a positive correlation pairs of relatives, demonstrating a genetic component in whorl determination and their asymmetrical occurrence.
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