This Week in Science

In Science this week, researchers from Germany's Walter Schottky Institute show how discrete three-dimensional DNA components can self-assemble in solution on the basis of shape complementarity and without base pairing. Using this principle, they created a series of homo- and heteromultimeric objects including an actuator and a switchable gear.

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360Dx reports that the US Centers for Medicare & Medicaid Services would cover next-generation sequencing-based cancer panel tests.

The Washington Post reports that a meteorologist is being considered as presidential science and technology advisor.

In PNAS this week: precision medicine strategy to screen for disease risk, genome evolution in Haemophilus influenzae, and more.

Researchers have developed a PCR-based assay to gauge whether manatees are present in waters.