题目内容
In2017,theareaofbiotechcropsin Australia was________millionhectares.
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In April _______, a white button mushroom (Agaricus bisporus) modified using the CRISPR technique received de facto approval in the United States, after the USDA said it would not have to go through the agency's regulatory process.
Palmer amaranth is a weed that competes with cotton. A native of the southwestern US, it traveled east and was first found resistant to glyphosate in 2006, less than ____ years after GM cotton was introduced.
The first genetically modified food approved for release was the Flavr Savr tomato in ______, which was developed by Calgene. It was engineered to have a longer shelf life by inserting an antisense gene that delayed ripening.
With the creation of golden rice in _______, scientists had genetically modified food to increase its nutrient value for the first time.
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