In Circulation

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They are small, just 22 nucleotides or so in length, but they may have a big role to play in diagnosing and determining the course of various cancers.

Many researchers had long thought that microRNAs played a role in cancer development and progression. But in 2008, some noticed that miRNAs could be detected in the blood, possibly paving the way for their use as cancer biomarkers.

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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.