As home gardeners in the U.S. page through seed catalogs and pick out their favorite heirlooms, there's a new seed that has never been available to them before: a tomato the color of a concord grape ...
It tastes like a tomato, smells like a tomato, and even looks (mostly) like a tomato. There's just one catch: It's purple.The USDA has approved a genetically modified purple tomato, clearing the path ...
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