This Week in Nature

In early online publication in Nature this week, Helicos BioSciences scientists report directly sequencing single molecule RNA from Saccharomyces cerevisiae without first converting it to cDNA. The end goal of this proof-of-principle study, led by Patrice Milos, is a "comprehensive and bias-free understanding of transcriptomes," says the abstract.

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NPR reports that with medical data being big business, some companies want to get patients involved.

The Asbury Park Press reports on the startup Genomic Prediction's test to determine an embryo's risk of disease.

In PNAS this week: optical mapping allows glimpse of structural variants, disease-linked GATA2 mutations boosts its protein activity, and more.

Senator Elizabeth Warren (D-Mass.) has released the results of a genetic ancestry analysis, the Boston Globe reports.