People with Down syndrome have an extra chromosome 21. Understanding the effects of those triplicated genes could help improve the health of those with Down syndrome and other medical conditions.
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Non-invasive prenatal testing can assess risk for genetic anomalies in a fetus. But interpreting risk levels is highly personal, as a study on Reddit discussions shows.
Miscarriage occurs in 15% to 25% of diagnosed pregnancies, bringing heartache to millions of women, many of whom blame themselves. In most cases, however, miscarriage is due to random genetic errors.
