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Teeny Tiny DNA Robot

Caltech researchers have built a prototype nanobot out of DNA, Popular Mechanics reports.

The nanobot has three main components, it says: a leg, an arm, and a sensor. The leg, which has two feet, allows the bot to move, while the arm can grab onto dye and the sensor then lets it know when to release the dye. Popular Mechanics notes that if the nanobot can be programmed to move around dye, it could be programmed to do all sorts of things.

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Bloomberg reports that the DNA-for-cash deal reported in Kentucky might be a more widespread scam.

St. Jude Children's Research Hospital scientists have treated infants with X-linked severe combined immunodeficiency using gene therapy in an early phase study.

St. Louis Public Radio reports that some African Americans are turning to DNA ancestry testing to help guide genealogical searches.

In Nature this week: a genomic analysis of the snailfish Pseudoliparis swirei, ancient DNA analysis gives insight into the introduction of farming to England, and more.