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DNA Test Identifies Mislabeled Sushi

As reported by The New York Times, two high school students embarked on a science project that revealed mislabeled or misrepresented fish found in restaurants and grocery stores in New York.

They used DNA testing to identify the different fish, and found that in 25% of the 60 fish tested, inexpensive fish were being sold as expensive fish. In one instance, a piece of sushi sold as the luxury treat white tuna turned out to be Mozambique tilapia, a much cheaper, farmed fish.

While the sample size in this project was too small to serve as incriminating evidence against the businesses in the area, the experiment serves as another example of the many possible uses of DNA testing today.

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