This Week in Science

In Science this week, a Harvard-led group reports on the use of the genome-editing technology CRISPR to record DNA events in bacteria. CRISPR is known to "record" past viral infections by storing spacers — short stretches of viral DNA — in the genome. The researchers show that these spacers are added in sequence, essentially creating a timeline of when spacers are added relative to each other.

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The Atlantic reports that genetic counselors are coping with an influx of patients seeking advice on their direct-to-consumer genetic test results.

A small study finds differences between three genomic prostate cancer tests, Medscape reports.

In Nature this week: shared genetic architecture for asthma and allergic diseases, and more.

A survey of Canadians finds them to be divided on genetically modified food, the Ottawa Citizen reports.