76 Section HUMAN DIVERSITY GENETIC ANALYSIS OF ADMIXTURE BETWEEN BAYASH ROMA FROM NORTHWESTERN CROATIA AND THE GENERAL CROATIAN POPULATION Novokmet Natalija1 Lauc Gordan3,5 , Galov Ana2 , Primorac Dragan6,7,8 , Marjanović Damir3,4 , Rudan Pavao1,9 1Institute for Anthropological Research, Zagreb, Croatia 2Division of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia 3Genos Ltd, DNA Laboratory, Zagreb, Croatia 4Institute for Genetic Engineering and Biotechnology, Sarajevo, Bosnia and Herzegovina 5Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia 6Medical School, University of Split, Split, Croatia 7Eberly College of Science, Penn State University, University Park, USA 8University of New Haven, New Haven, USA 9Anthropological Center of the Croatian Academy of Sciences and Arts, Zagreb, Croatia The Roma are a minority group that do not share a common homeland, speak different languages and consist of individuals of various religions. <...> Population-genetic studies of Roma as a transnational isolate have mostly sought to compare their genetic affi nities with proposed parental populations. <...> The aim of this study is to assess the genetic structure of the Bayash Roma population from northwestern Croatia, and of the general Croatian population, and to investigate the extent of admixture between them. <...> Population differentiation and structure were analyzed using a set of genetic microsatellite data from two original studies (100 Bayash Roma from northwestern Croatia and 195 individuals from the general Croatian population). <...> Results demonstrated that two population clusters best explain the genetic structure. <...> Most individuals of the Bayash Roma population were assigned to a single genetic cluster and most individuals of the general Croatian population were assigned to another. <...> Admixture analysis revealed that the percentage of nonCroatian individuals in the general Croatian population is approximately twice higher than the percentage of non-Romani individuals in the Romani population. <...> Higher percentages of admixed and non-Croatian individuals found in the general Croatian population and lower percentages of admixed and non-Roma individuals found in the Bayash Roma population are in line with the presence of ethnomimicry in Roma. <...> Key words: population substructure; admixture; Bayash Roma, ethnomimicry Contact information: Novokmet Natalija, e-mail: natalija.novokmet@inantro.hr. , Škaro Vedrana3 , Projić Petar3 , POSSIBLY THE FIRST CASE OF AGENESIS OF SECOND <...>