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Seed Week reports:

As the abundance of genetically modified foods continues to grow, so does the demand for the monitoring and labeling of them.

The genes of GM plants used for food are tweaked to make them more healthful or pest-resistant, but some consumers are wary of such changes.

To help inform shoppers and enforce regulations, scientists are reporting in the American Chemical Society's journal Analytical Chemistry the first comprehensive method to detect genetic modifications in one convenient, accurate test.

Although researchers have come up with many ways to detect GM in crops, no single test existed for a comprehensive scan. The test, called MACRO, stands for Multiplex Amplification on a Chip with Readout on an Oligo microarray.

It combines two well-known genetic methods to flag about 97 percent of the known commercialized modifications - almost twice as many as other tests. It also can be easily expanded to include future GM crops.

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