( are more limited. Comparing eight indep...)Researchers predict infinite genomes

are more limited. Comparing eight independent isolates of Bacillus anthracis (the bacterium that causes anthrax), for instance, Tettelin and colleagues found that just four genomes were sufficient to characterize its pan-genome. That raises interesting questions about rates of evolution, notes Fraser. "We're intrigued to learn more about the diversity within a given species, and how it happens," she says.

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Source:The Institute for Genomic Research


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