This Week in Science

In this week's Science, a multi-institute research team reports on the discovery that certain classes of the bacterial protein Cas, which is used in the gene-editing system CRISPR, are fused to a reverse transcriptase gene. As a result, these Cas proteins can capture and incorporate RNA, suggesting that certain CRISPR systems can not only obtain information from the genomes of DNA-based viruses but also from the gene expression program they contain.

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While gene therapies may have high price tags, they could be cheaper than the cost of managing disease, according to MIT's Technology Review.

Researchers are looking for markers that indicate which cancer patients may respond to immunotherapies, the Associated Press writes.

In Nature this week: paternal age associated with de novo mutations in children, and more.

Nature News writes that researchers are still wrangling over the role of the p-value.