The Guardian
Technique that examines fragments of foetal DNA in mother’s bloodstream could limit need for invasive screening, according to researchersA new maternal blood test that can detect thousands of serious genetic conditions in the developing foetus could limit the need for invasive screening during pregnancy, according to scientists.The test, to be described at the European Society for Human Genetics conference in Gothenburg on Saturday, relies on detecting tiny fragments of a foetus’s DNA that circu