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Subway’s Tuna Sandwiches Found to Contain No Tuna Fish DNA

Subway is on the hook for its tuna once again after a lab report found there’s no actual tuna DNA in its sandwiches and wraps.

The New York Times had 60 inches of Subway tuna sandwiches from three different restaurants in Los Angeles lab tested after the chain was accused in a lawsuit reported earlier this year, alleging the fish is made from “a mixture of various concoctions,” first reported by the Washington Post.

The tuna was frozen and sent out to the lab, which determined “no amplifiable tuna DNA was present in the sample and so we obtained no amplification products from the DNA. Therefore, we cannot identify the species,” according to the Times.

The lab conducted a PCR test to see if Subway’s tuna featured one of five varying tuna species, the New York Times reported, explaining there are 15 species of fish that can be labeled tuna, according to the U.S. Food and Drug Administration’s Seafood List.

The lab determined two potential reasons why no tuna was detected in the sample, saying, “One it’s so heavily processed that whatever we could pull out, we couldn’t make an identification … Or we got some and there’s just nothing there that’s tuna,” the newspaper noted. (Read more from “Subway’s Tuna Sandwiches Found to Contain No Tuna Fish DNA” HERE)

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Artificial Human Life Could Soon Be Grown in Lab After Embryo Breakthrough

Artificial human life could soon be grown from scratch in the lab, after scientists successfully created a mammal embryo using only stem cells.

Cambridge University mixed two kinds of mouse stem cells and placed them on a 3D scaffold. After four days of growth in a tank of chemicals designed to mimic conditions inside the womb, the cells formed the structure of a living mouse embryo.

The breakthrough has been described as a ‘masterpiece’ in bioengineering, which could eventually allow scientists to grow artificial human embryos in the lab without the need for a sperm or an egg.

Growing embryos would help researchers to study the very early stages of human life so they could understand why so many pregnancies fail, but is likely to prove controversial and raise ethical questions about what constitutes human life.

Currently scientists can carry out experiments on leftover embryos from IVF treatments, but they are in short supply and must be destroyed after 14 days. Scientists say that being able to create unlimited numbers of artificial embryos in the lab could speed up research while potentially removing some of the ethical boundaries. (Read more from “Artificial Human Life Could Soon Be Grown in Lab After Embryo Breakthrough” HERE)

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