In a methods paper published online in advance in Nucleic Acids Research this week, Stanford University's Emily Harcourt and Eric Kool present an approach for isothermal amplified detection of miRNA based on two nucleic acid-templated chemistry steps. Harcourt and Kool say that their doubly templated double-amplification approach offers "significant advantages in ease of operation for miRNA detection."

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Polygamy amplified a rare genetic disease in area near Arizona-Utah border, BBC Future reports.

Genetic ancestry testing led one woman to learn that her father and another baby boy had been switched at birth, the Washington Post reports.

Simple de-identification methods can protect information in a database from attackers, a new study suggests.

In Science this week: approach to visualize chromatin structure in nuclei, and more.