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Researchers have traced the emergence of the sickle cell variant to a single event that took place about 7,300 years ago, as GenomeWeb has reported.

Previous studies had indicated the presence of five sickle cell haplotypes, named after the regions were they are most common, and suggested different origins for the various haplotypes.

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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.