填空题

Among all the GM crops, Bt genes have proved most effective in ______ when the largest reduction in pesticide use has been reported.

【参考答案】

cotton

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热门试题

填空题

The plants would be insect resistant as a gene from the soil bacterium could direct cells to produce ______ that is toxic to certain insects.

填空题

The two factors contributing to the appealing of GM crops to farmers are and ______ .