Are you a nodder, pre-schooler, or grand advertiser? Blogger RPM scoped out the audience at a departmental seminar and came up with a few categories of attendees. The nodder is in total agreement with the speaker; the pre-schooler naps in the back; and the grand advertiser goes on about his own work. See RPM's full list here.

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The UK's Nuffield Council on Bioethics says genetically modifying human embryos could be morally permissible, according to the Guardian.

A new Nature Biotechnology paper reports that CRISPR-Cas9 gene editing can lead to large deletions or complex rearrangements that could be pathogenic.

The Wall Street Journal likens a prototype developed by Synthetic Genomics to a "biological fax machine."

In PNAS this week: strategy for reactivating Rett syndrome-linked MECP2, small molecules able to suppress Staphylococcus aureus virulence, and more.