NEW YORK (GenomeWeb News) – The GenomeWeb Daily News Index, which tracks the stocks of 30 firms that make genomic research tools and molecular diagnostic products, jumped around 18 percent in 2012, as biotech stocks in general enjoyed a strong year.

The GWDN Index bounced back from a difficult 2011, when it fell around 14 percent after a second-half slump.

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In PNAS this week: ancestry and admixture in Brazilians, characterization of novel double-stranded RNA mycovirus, and more.

Researchers report that what scents someone picks up can reflect their complement of immune genes.

The New York Times examines ethics and China's push to lead biomedical research.

At her blog, Sally Rockey dives into National Institutes of Health funding data.