Cotton like Candy

Or Cottonseed you can Eat thanks to Genetic Engineering.

A few years ago, I read about a research group that had used genetic engineering to remove a poisonous compound from cotton seed. Now, it seems, they are one step closer to making a positive impact on the availability of food for people in developing countries and beyond. Time Magazine reports that Dr. Keerti Rathore and his team, who made the development years ago have now moved on to field trials, a necessary step to test the resilience and effectiveness of the trait in real-world conditions.

RNA that Interferes

Let me tell you how this works. They used a technique called RNA interference, or RNAi. When plants (and other organisms we are finding) are infected with a virus that uses RNA as its genetic material, they defend themselves by chopping up the offending molecule. Cells use the double-stranded DNA as genetic material, and use the very similar single-stranded RNA to carry information from the genes to the rest of the cell for making proteins. But the RNA that these viruses use is double-stranded, like DNA. Since plants don’t use RNA as a double-strand, this gives them something different to detect and destroy, and that’s what they do.

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