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In Science this week, a multi-institute team reports new DNA- and RNA-like systems engineered using eight nucleotide building blocks — dubbed hachimoji — that form orthogonal pairs. According to the scientists, the synthetic systems meet the structural requirements needed to support Darwinian evolution and offer increased informational density over standard DNA.

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A new study catalogues the genome and evolutionary history of the oak family, UPI reports.

Dog DNA testing is a growing market, but there's still a lot of uncertainty about the accuracy of the results, the Boston Globe says.

A University of South Florida researcher is testing bone fragments to determine if they belong to Amelia Earhart.

In Cell this week: antisense Piwi-interacting RNA responses to endogenous retroviruses, proteomic patterns in hepatocellular carcinoma, and more.