This Week in Science

In a paper published online in advance this week in Science, investigators in Switzerland report on how transcriptional bursts "generate gene-specific temporal patterns of mRNA synthesis in mammalian cells." In generating a variety of gene-trap and transgenic cell lines in which an unstable mRNA expressed a luciferase protein, the team recorded on/off transcriptional switching rates by recording bioluminescence; the researchers then used mathematical modeling to show that "burs

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Jay Shendure and his colleagues have developed a new method to more comprehensively identify human cell types, the NY Times reports.

Researchers in the UK and Japan have shown that infertility in mice with three sex chromosomes can be overcome, according to the Guardian.

China is embracing preimplantation genetic diagnosis, Nature News reports. 

In PLOS this week: host genetic factors associated with cervical neoplasia progression, population patterns for an ancient flowering rainforest plant, and more.