Dewi Imelda Roesma

The Study of Dermatoglyphic in Simian Crease Group (The Human Masukake- Gata) at Minangkabau Ethnic, West Sumatra, Indonesia

The research on dermatoglyphic study based on finge r print patterns, total finger ridge count, total number of triradius, a-b ridge count and atd angle in simian crease group (the human Masukakegata) was conducted at Minangkabau ethnic. The stud y used a purposive sampling method for the simian crease group and random sampling for the nor mal group. Data processing used qualitative and quantitative descriptive method and it was carr ied out in the Laboratory of Genetics and Cell Biology, Department of Biology, Faculty of Mathemat ics and Natural Sciences, University of Andalas, Padang, West Sumatra. The results showed t hat the finger print pattern on the simian crease group was significantly different to the nor mal group. There was increased frequency of whorls in simian crease group. While the total fing er ridge count, total number of triradius, a-b ridge count and atd angle on simian crease group we re not significantly different to the normal group. The atd angle was recommended to be one of t he other markers to predict rapidly trisomy 21 besides simian crease on palmar and proposed to no longer define the simian line just as characteristic of people with Down’s syndrome.