Intra tribal and inter tribal variation in palmar flexion crease a population study
Das, B.M.; Das, R.
Indian Journal of Physical Anthropology and Human Genetics 7(3): 173-178
1981
ISSN/ISBN: 0378-8156 Document Number: 376789
The Khasis live in the Khasi and Jaintia Hills, and the Garos inhabit the Garo Hills of Meghalaya State, India. Both are Mongoloid tribes, but they belong to 2 entirely different linguistic and ethnic groups. Palm prints were collected from males of these 2 endogamous and genetically diverse tribes. The main types of palmar flexion creases (single radial base crease (SRBC), double radial base crease (DRBC) and triple radial base crease (TRBC)) were determined by finding the common point of origin of the 3 main flexion creases (distal transverse, proximal transverse and radial longitudinal). DRBC is the most common in all the populations, but its percentages are much lower among the Khasis than among the Garos. Among Khasi groups the percentage of SRBC varies from 14.52-24.42, while this type occurs in 4.05% in Hill Garo and 9.15% in Plains Garo. The percentage of TRBC ranges from 7.56-9.68 among Khasis and occurs in 5.41 and 8.54% in Hill and Plains Garos, respectively.