精密地

• Using a novel approach based on the measurement of the ratio of such rna molecules copied from gene copies which the fetus has inherited from the father and mother , professor lo and his team have achieved the noninvasive prenatal detection of downs syndrome
  卢煜明教授率领的研究组利用第二十一号染色体其中的一个基因所表达的核糖核酸( rna )分子，精密地计算出胎儿由父亲及母亲遗传下来的核糖核酸分子的比例，成功进行无创性产前唐氏综合症测试。