Johns Hopkins engineers used Legos to model microfluidic arrays at more easily observable scale, reports Scientific Blogging. Researchers led by Joelle Frechette and German Drazer used small beads, a glycerol-filled tank, and Legos to see what happens on the micro- or nano-scale of a microfluidic array.

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The New York City medical examiner is overseeing an effort to identify missing persons using DNA, according to the Associated Press.

Nobel laureate Günter Blobel has died at 81, the New York Times reports.

In PNAS this week: mouse model of genetically induced emphysema, gene expression signatures of circulating melanoma cells, and more.

Technology Review reports that 2017 was the year of consumer genetic testing and that it could spur new analysis companies.