English Français Deutsch Italiano Nederlands Româna <br>The R1b-U106/S21+ Research Group goal is to contribute to the knowledge and understanding of the deep ancestry of the R1b-U106/S21+ subclade. This goal will be achieved by: <br><p> <br><ul> <br><li>Maintaining and compiling as large a database of U106/S21 SNP-tested haplotypes as possible</li> <br><li>Determining group participant relatedness through comparisons of Genetic Distance (GD) and Time to Most Recent Common Ancestor (TMRCA)</li> <br><li>Identifying the U106/S21+ allele structure and frequencies</li> <br><li>Identifying possible clusters of members and the clusters' geography, identifying marker values and age</li> <br><li>Estimating the most likely ages back to the U106/S21+ subclade founder</li> <br><li>Mapping the geographic distribution and population densities of the U106/S21 subclade in Europe</li> <br></ul> <br>