This Week in Science

In Science this week, researchers at the University of Washington School of Medicine and members of the 1,000 Genomes Project, along with their industry colleagues, report their analysis of the "diversity of human copy number variation and multi-copy genes." In their investigations of 159 human genomes, the team found more than 4 million "'singly unique nucleotide' positions informative in distinguishing specific copies," as well as "human-specific expansions in genes associated with brain develop

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US Attorney General Jeff Sessions is considering using DNA tests to determine relatedness between adult and child migrants, the Daily Caller reports.

Bloomberg reports that Brainstorm Cell Therapeutics plans to offer a treatment it is developing under the "right to try" law for hundreds of thousands of dollars.

In Nature this week: expansion of disease-resistance genes among long-lived oak trees, and more.

In a proof-of-concept study, researchers report being able to determine age from dried bloodstains, Discover's D-brief blog reports.