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Biologist David Anderson and graduate student Suzuko Yorozu examine a vial containing fruit flies.
Biologist David Anderson and graduate student Suzuko Yorozu examine a vial containing fruit flies. In Anderson's lab researchers were able to cut a hole in the shell that covers the fly's brain for a detailed view. Having used sophisticated techniques to selectively visualize the activity of particular genes in the fly, the researchers could see when any neurons in the fly's brain were activated by a particular stimulus.
Credit: Bob Paz/Caltech
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