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An arms race that plays out in a single genome

School of Arts & Sciences biologist Mia Levine and Cara Brand, a postdoc, shed light on an example of coevolution in fruit flies that has implications for human health.
Illustration of Alice in Wonderland chasing the Red Queen
Like Alice furiously running to keep up with the Red Queen, but remaining in one place, two genetic elements in the fruit fly genome are engaged in an evolutionary arms race to simply keep the biological status quo, according to new research by Penn scientists. (Image: John Tenniel in Lewis Carroll’s Through the Looking Glass)

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