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This Week in Nature

In this week's Nature, a Harvard University-led team reports that a modified version of the gene-editing technology CRISPR can target and modify single nucleotides without introducing random insertions and deletions into the genome. The approach involves a version of the Cas9 protein that does not cut both strands of DNA, but can still bind to a target sequence.

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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.