Sexual Dimorphism In Crania From Uttar Pradesh

Abstract

Sexual Dimorphism exists in the morphology for males and females. The differences are mainly due to internal, genetic or hereditary factors, but they sometimes may be due to external factors, as in case of many tribes where they alter the structure of skull and body parts through various methods, which is their hallmark. Differences in skull is not only helpful in delineating the population variation and racial classification, but is also useful in individual identification and age assessment.

The present study was conducted to observe sexual dimorphism in male and female crania of Uttar Pradesh. For the study a total of 64 crania belonging to both male and female were taken into considerations from the department of anthropology of Lucknow university and the department of anatomy KGMU.  The study reveals significant sexual dimorphism in almost all features of cranial morphology, except frontal index. The measurements, when subjected to t - test, showed significant variations between the two sexes, and the probability values oscillating between .001 to .002, with confidence level of 99.9%.