Sex differences and bilateral asymmetry in dermatoglyphic pattern elements on the fingertips.

In the present paper, 539 Polish families and 999 individuals (515 males and 484 females) were analysed to determine whether asymmetry of dermatoglyphic patter elements on the fingertips of ulnar and radial loops in genetically controlled. And we enquire whether the body is bilaterally asymmetrical. We have found the asymmetry between right and left hand fingertips for ulnar and radial loops, for each digit and between the two sexes. The differences between the sexes is small. The bimanual difference in dermatoglyphic pattern elements between hands, right minus left, has been used as a measure of asymmetry. The mean and variance difference for males is not significantly different from the mean and variance for females. An investigation was also made of correlations between relatives for bimanual differences, right minus left. We may conclude from these results that the asymmetry of dermatoglphic pattern elements on fingertips of ulnar and radial loops has little hereditary component. Finally, the results of this work show that the dermatoglyphic pattern elements on fingertips of ulnar and radial loops on each side of the body are inherited.