The Familial Mutation

Researchers have traced the origin of a rare version of early-onset Alzheimer's disease in a number of families to a common ancestor who lived in Jalisco, Mexico, NPR's Shots blog reports.

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A team of researchers plans to sample Loch Ness for environmental DNA, according to Newsweek.

US News & World Report writes that genetic testing of lung tumors can help identify treatments for patients.

The New York Times writes about the appearance of mosaicism in healthy people.

In PNAS this week: insecticide resistance patterns Anopheles gambiae mosquito, transcriptome patterns in Pseudomonas aeruginosa during infection, and more.