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Exploration of sexual dimorphism and bilateral asymmetry in finger print patterns of North Indian population

Introduction- The fingerprints are most dependable and acceptable dermatoglyphic traits for personal identification The current study is an attempt to observe the percentage frequency distribution of patterns of fingerprint bilaterally as well as digit wise, to assess the predominant pattern type, besides, evaluating the statistically significant gender variations. This study may enhance the authenticity of finger print patterns in identifications of suspects. Material & method- The study sample was consisting of fingerprints of 600 medical students of Punjab, India. The subjects were aged between 17–25 years and male female ratio was 1:1. Fingerprints were recorded by the ink and roller method of Cummins and Midlo and analysed manually by using Henry`s classification. Appropriate statistical tests were applied to achieve aim of study. Result- This cross- sectional study revealed that the most common finger print pattern of both hands was Loops (L-51.6%, R-53.3%), followed by whorls (L-38.6%, R-38.2%), arches (L-8.8%, R- 6.7%) and composites (L-1.0%, R-1.8%) respectively. Each digits show preferences for specific patterns.Discussion- The current study showed insignificant bilateral difference and significant sexual dimorphism in the distribution frequency of the finger print which might be caused by differences in heritability and developmental variation among sexes