This Week in Science

Researchers at the Chinese University in Hong Kong show that the "entire fetal and maternal genomes [are] present in maternal plasma at a constant relative proportion," which they determined by sequencing a maternal plasma sample at up to 65-fold coverage.

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Lawmakers have asked four direct-to-consumer genetic testing companies to explain their privacy policies and security measures, according to Stat News.

The Trump Administration has proposed a plan to reorganize the federal government, the Washington Post reports.

In Science this week: genetic overlap among many psychiatric disorders, and more.

The Economist writes that an increasing number of scientific journals don't do peer review.