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Brain Calls Dibs on Many Genes

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Science  16 Feb 2001:
Vol. 291, Issue 5507, pp. 1188
DOI: 10.1126/science.291.5507.1188

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A huge proportion of human genes are thought to be involved in constructing, wiring up, and maintaining the nervous system. Neuroscientists hope the completed genome will help them to nail down the brain's share. Current estimates range from "a fair chunk" of the genome to "40%" to "most."