Although the recent news about actress Angelina Jolie's decision to opt for mastectomy based on her BRCA1 status might suggest to the public that genomic testing will enable many people to make similar, well-informed decisions, science journalist David Ewing Duncan says that his family's experience shows that there is a long way to go before most people can make such knowledgeable choices.

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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.