This Week in Science

This week, Science publishes technical comments from three groups on a May 2011 paper from the University of Pennsylvania School of Medicine's Mingyao Li et al., "Widespread RNA and DNA sequence differences in the human transcriptome." Claudia Kleinman and Jacek Majewski at McGill University say that "common sources of systematic errors in high-throughput sequencing technology, which were not properly account

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A fire at a Manchester hospital may have destroyed lab equipment and data, the Guardian reports.

Researchers generate a genetic database from skeletal remains from the 1845 Franklin Expedition to the Arctic, Live Science reports.

Researchers in China have begun another trial using CRISPR/Cas9 approaches in cancer patients, according to the Wall Street Journal.

In Science this week: human DNA found in sediments from archeological sites lacking bones, and more.