As with all modern European nations, a large degree of 'biological continuity' exists between Bosnians and Bosniaks and their ancient predecessors with Y chromosomal lineages testifying to predominantly Paleolithic European ancestry.[1][2] Studies based on bi-allelic markers of the NRY (non-recombining region of the Y-chromosome) have shown the three main ethnic groups of Bosnia and Herzegovina (Bosniaks, Bosnian Serbs and Bosnian Croats) to share, in spite of some quantitative differences, a large fraction of the same ancient gene pool distinct for the region.[3] Analysis of autosomal STRs have moreover revealed no significant difference between the population of Bosnia and Herzegovina and neighbouring populations.[3]