Populational-genetical analysis of hyperextensibility of thumb joint in Živinice population: Bosnia and Herezgovina

The objectives of this research were to establish the recessive phenotype frequency of hyperextensibility of the proksimal thumb joint - pht/pht (%) and of recessive allela (qpht), the frequency of recessive phenotype hyperextensibility of the distal thumb joint - dht/dht (%) and recessive allela (qdht), by sub-samples urban - rural area and sex of respondents. Obtained data are compared with available data from previous testing population of Bosnia and Herzegovina. The research was performed in the Živinice district elementary school ('Prva OS Živinice' and 'OS Basigovci' Basigovci). The sample involved 434 students, both sexes (212 boys and 222 girls) age between 11 and 16 years. Of the total number of respondents 195 persons is from urban and 239 from rural areas. Analysis of the result phenotype hyperextensibility of the proksimal thumb joint from Živinice area the percentage of registered is 51,28 % and relative frequency of recessive allele (qpht=0,7l), while in the Basigovci area the frequency of phenotype hyperextensibility of the proksimal thumb joint is 70,71 % with relative frequency of recessive allele (qpht=0,84). Frequency phenotype hwerextensibility of the distal thumb joint in Živinice area (urban area) is 36,92 %, relative frequency of recessive allele (qdht=0,60), while the incidence of same phenotype in rural area is 33,88% and relative frequency of recessive allele (qdht=0,58).