Non-invasive prenatal testing potentially provides a wealth of genetic information, but the quality of the DNA sequencing is poor -- only about 10 percent coverage per genome. Nevertheless, scientists now show that with enough genomes -- in this case, 141,431 -- it is possible to find genetic variants linked with human traits, including birth outcomes and susceptibility to infectious disease. Such statistical analyses can even by used to track migration patterns. from Latest Science News -- ScienceDaily https://ift.tt/2P9mCfN