This Week in PNAS

In a paper published online in advance in PNAS this week, researchers at Mount Sinai School of Medicine in New York and the University of Illinois at Urbana-Champaign present "an experimental approach based on multicolor single-molecule fluorescent in situ hybridization to study the composition of viral RNAs at single-virus particle resolution." The team applied its FISH-based approach to determine the copy number of each RNA segment within individual virus particles for th

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National Geographic reports that marine mammals have lost a gene that could make them more susceptible to organophosphate damage.

NPR reports on Human Cell Atlas Consortium's effort to catalog all the different cell types within the human body.

The Union of Concerned Scientists surveyed US government scientists about Trump Administration policies and more, Science reports.

In PNAS this week: history and genetic diversity of the scarlet macaw, approach for predicting human flu virus evolution, and more.