(PhysOrg.com) — Scientists at Penn State and the National Institute of Genetics in Japan have demonstrated that several statistical methods commonly used by biologists to detect natural selection at the molecular level tend to produce incorrect results. “Our finding means that hundreds of published studies on natural selection may have drawn incorrect conclusions,” said Masatoshi Nei, Penn State Evan Pugh Professor of Biology and the team’s leader…

Nei said that to obtain a more realistic picture of natural selection, biologists should pair experimental data with their statistical data whenever possible. Scientists usually do not use experimental data because such experiments can be difficult to conduct and because they are very time-consuming.

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