Dactylographic pattern in relation to blood group & Iris colour

Finger ridge patterns, blood group, iris colour-all three are very important tools of identification. Aim of present study was to find out any significant relationship of dactylographic pattern with ABO-Rhesus group & iris colour. The study was conducted among 251 medical students of semi-urban area of West Bengal. Loop was mostly observed followed by whorl, arch & composite type. In ABO system, O type was most prevalent, followed by B, A & AB group. 98% of study population was Rhesus positive. There were statistically significant association between finger ridge patterns with ABO group & ABO-Rhesus considered together as p values < 0.05 in both observations. But there was no significant relation found between dactylographic pattern & Rhesus blood group as p > 0.05. Distribution of primary finger print pattern was same for A+ve, B+ve, AB+ve and O+ve individual, i.e. loop was most predominant, followed by whorl, arch & composite type. But in B-ve group, whorl (60%) was more than loop (40%) & in AB-ve group, loop (80%) was followed by arch (20%). This study population showed almost no variation in iris colour. It may be concluded that these tools of identification should be used independently to obtain best result.