Abstract
Thirteen Iranian populations of diverse origin (3158 individuals) were analysed for the palmar a-b ridge count and ridge breadth. The distributions of these traits often didn't depart from normality for skewness but were frequently found leptokurtic for kurtosis. The correlation coefficients of the a-b ridge count commonly revealed significant bimanual differences. Sex differences were also found to be significant upon consideration of the left, right and total a-b ridge breadth. The bimanual and sex differences observed may be attributed to developmental differences and exogamy. Tests for interpopulational variation revealed significant heterogeneity for all the traits studied.
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