DNA Barcoding In Danger Of 'Ringing Up' Wrong Species

DNA barcoding is a movement to catalog all life on earth by a simple standardized genetic tag, similar to stores labeling products with unique barcodes. But the approach as currently practiced churns out some results as inaccurately as a supermarket checker scanning an apple and ringing it up as an orange, according to a new study published in the Proceedings of the National Academy of Sciences.

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