This Week in Science

In this week's Science, Baylor College of Medicine researcher James Lupski offers his thoughts on genome mosaicism and its implications for human health. Amid advances in sequencing technology, it is becoming apparent that individual humans are made up of a population of cells, each with its own "personal" genome, he says. This mosaicism may turn out to be more widespread than previously anticipated, raising questions as to the extent of its influence on development and disease.

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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.