Biologists continue to hone their tools for deleting, replacing or otherwise editing DNA and a strategy called CRISPR has quickly become one of the most popular ways to do genome engineering. Utilizing a modified bacterial protein and a RNA that guides it to a specific DNA sequence, the CRISPR system provides unprecedented control over genes in many species, including perhaps humans. This control has allowed many new types of experiments, but also raised questions about what CRISPR can enable. Science collects some of its recent research papers, commentary and news articles on CRISPR and its implications below.

The CRISPR Revolution
Guidance on the environmental risk assessment of genetically modified animals
PITCh-ing an Alternative Knock-in Strategy for TALENs and CRISPR/Cas9
EFOR - Réseau d'´Étude Fonctionnelle chez les ORganismes modèles
CRISPR Cas9: A novel approach to genetic engineering
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