NEW YORK (GenomeWeb Daily News) — A new sequencing study by Canadian researchers suggests that primary breast cancers acquire significant numbers of new mutations in their coding regions as they progress towards metastasis — a characteristic that underscores the importance of analyzing cancers at different stages, the researchers said.

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In Science this week: factors influencing retrotransposon integration sites, and more.

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.