This Week in PNAS

Genes in the opsin gene family share a common, early animal ancestor, according to a study in the early, online edition of the Proceedings of the National Academy of Sciences by researchers from the National University of Ireland and the University of Bristol.

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A bioethicist argues for the responsible use of germline gene editing.

Some breweries are using DNA-based testing to determine whether unwanted bacteria are affecting their beers, The Verge reports.

Standardized N-of-1 trials will be needed to test out personalized medicines, writes Nicholas Schork from the J. Craig Venter Institute at Nature.