Sex as stress management in microbes

Why is sex so popular? The question of why so many organisms reproduce sexually has mystified evolutionary biologists since before Darwin, who wrote, "The whole subject is as yet hidden in darkness." In a recent article in ...

Predators help prey adapt to an uncertain future

What effect does extinction of species have on the evolution of surviving species? Evolutionary biologists have investigated this question by conducting a field experiment with a leaf galling fly and its predatory enemies. ...

Genome variation gives insight into coronavirus spread

As SARS-CoV-2 has spread around the world, its transmission rate has varied alongside variations in its genome, according to researchers at the University of California, Davis. Surveillance of the virus genome may help public ...

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Genetic variation

Genetic variation, variation in alleles of genes, occurs both within and among populations. Genetic variation is important because it provides the “raw material” for natural selection.

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