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This Week in Science

In this week's issue of Science, Rockefeller University researchers Richard Pomerantz and Mike O'Donnell report that Escherichia coli replication forks that have stalled following head-on collisions with RNA polymerase remain stable and can restart once the polymerase is ousted by a transcription-repair coupling factor Mfd.

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Bloomberg reports that the DNA-for-cash deal reported in Kentucky might be a more widespread scam.

St. Jude Children's Research Hospital scientists have treated infants with X-linked severe combined immunodeficiency using gene therapy in an early phase study.

St. Louis Public Radio reports that some African Americans are turning to DNA ancestry testing to help guide genealogical searches.

In Nature this week: a genomic analysis of the snailfish Pseudoliparis swirei, ancient DNA analysis gives insight into the introduction of farming to England, and more.