Individual olfactory sensory neurons express only one of more than a thousand different odorant receptors, suggesting that DNA rearrangement may be involved. Based on a clever new technical approach, two groups now conclude that this is not the case.
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Chun, J. Choices, choices, choices. Nat Neurosci 7, 323–325 (2004). https://doi.org/10.1038/nn0404-323
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DOI: https://doi.org/10.1038/nn0404-323