Only a small sliver of human DNA is functional, say researchers from the University of Oxford in PLOS Genetics. They calculate that 8.2 percent of the human genome is under negative selection and thus likely to be functional.
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The UW's Wylie Burke and Dartmouth's Gilbert Welch argue that whole-genome testing may do more harm than good, and a related poll.
In PNAS this week: epigenetic changes linked with high-altitude pulmonary edema, transcriptome profiling of maize leaf development, and more.
Stanford University researchers are studying top athletes to uncover genes linked to performance.
In PLOS this week: phylogenetic study of hepatitis E viruses in Swedish moose, recombination sites in the honeybee genome, and more.