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Some countries have already allowed genome-editing research on nonviable embryos (those that could not result in a live birth), and others have approved genome-editing research studies with viable embryos.
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The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation.
Opponents of GM foods claim that long-term health risks have not been adequately assessed and propose various combinations of additional testing, labeling or removal from the market.
There are ongoing public concerns related to food safety, regulation, labelling, environmental impact, research methods, and the fact that some GM seeds, along with all new plant varieties, are subject to plant breeders’ rights owned by corporations.
Gene flow, impact on non-target organisms, control of the food supply and intellectual property rights have been raised as potential issues of GM foods.
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