Companies count DNA sequences in the blood of high-risk moms to test for Down syndrome and other large-scale disruptions, but they could do more.
Medical experts are also taking note of the burgeoning field. In November, two medical societies released a joint opinion that the noninvasive DNA tests could be used to screen high-risk pregnancies, which include cases where the mother is over 35 or has had previous pregnancies with chromosome abnormalities.
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via Tumblr Brave New World of Prenatal DNA Sequencing