Mahendra Kumar*, Ram Narayan Prasad & H.N.Tiwary
Dept. of Zoology, Ranchi University, Ranchi.
Received 8th June 2006; Revised 10th July 2006
Abstract: Jharkhand is the state where about 32 tribal groups have been residing since ancient time . Some of the studies shows the endogamity in population that enhances the chance of incidence of certain traits which are common to them. Winchester(1969) first reported inherited trait in humans is governed by a single effecting inheritance is an Autosomal dominant fashion (homozygous individuals) some other Autosomal genetic traits have been studied like syndactyly, brachydactyly etc.in some population groups of Gumla. These deformities affected two persons among a total of 127 individuals represented by 10 pedigrees. With the help of these pedigrees an attempt has been made to interpret the pattern of inheritance of reported anomalies.