This Week in PNAS

In the PNAS Early Edition this week, investigators at the Laboratory of Experimental Hemato-Oncology in Luxembourg, along with their collaborators at the Institute for Systems Biology in Seattle and elsewhere, show that some circulating microRNAs "can be sensitive biomarkers" for chronic lymphocytic leukemia, as they've found that "certain extracellular miRNAs are present in CLL patient plasma at levels significantly different from healthy controls and from patients affected by other

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CNBC reports that Amazon invested in the startup Grail as it sees an opportunity for its cloud computing company in genomics.

Lawrence Krauss writes at Slate that science is needed for good public policy and should not be ignored.

Researchers are working on re-making the yeast genome from scratch, according to the Associated Press.

In Cell this week: functional profiling of Plasmodium genome, a self-inactivating rabies virus, and more.