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Brainbow rainbow
Jess Brooks '13, Esteban Engel (postdoc), and Lynn Enquist (faculty)
Department of Molecular Biology and the Princeton Neuroscience Institute
Vero cells are a particular kind of kidney monkey cells. Here they have been infected by a herpes virus that carries a "brainbow cassette," which makes cells express proteins that are tagged with a variety of fluorescent colors.

This rainbow of colors helps us identify and analyze individual neurons (the core components of the body's nervous system), thus allowing us trace neural circuits.