Researchers at Nanjing University have found miRNA signatures in blood serum, says an article in Tech Review. In work published in Cell Research, they sequenced miRNA in the blood of people with lung cancer, colorectal cancer, and diabetes and found specific expression patterns. "Whatever the reason, microRNAs are stable in the serum and are resistant to ribonuclease digestion," says lead author Chen-Yu Zhang.

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Gene drives might run into biological resistance, the Economist reports.

Forensic experts exhumed painter Salvador Dalí's body to collect DNA for a paternity test, CBS News reports.

Yale Environment 360 writes that synthetic and conservation biologists aren't always on the same wavelength, but they are trying to reach an understanding.

In Science this week: full CRISPR locus integration complex structure, and more.