Duke's Claudia Gunsch is working on a way to silence genes in bacteria using short, singled-stranded DNA, says MIT's Technology Review. If she can get it to work -- she recently presented a proof-of-concept study at the American Society for Microbiology -- there are a variety of applications, including engineering better biofuels, turning off bacterial antibiotic-resistance genes, and filtering bacteria in water.

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A phylogenetic analysis indicates two venomous Australian spiders are more closely related than thought, the International Business Times reports.

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

In Science this week: CRISPR-based approach for recording cellular events, and more.

A new company says it will analyze customers' genes to find them a suitable date, though Smithsonian magazine says the science behind it might be shaky.