Science journalist Jennifer Kahn joins us for this week’s Please Explain, which is all about CRISPR, an incredible tool that makes precise gene editing cheaper and easier than ever before. Researchers have used CRISPR to genetically engineer malaria-resistant mosquitoes and manipulate the genes so that they copy-and-paste themselves, making it more likely that the new generation of mosquitoes will also be resistant. Kahn will discuss CRISPR, how it can be used in humans, the ethical questions it presents, gene drives and the recent CRISPR patent decision. 

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