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...cells used by Molecular Biologists Carl Merril, Mark Geier and John Petricciani at the National Institutes of Health in Bethesda, Md. were taken from a victim of the hereditary disease called galactosemia. Because of a defect in the genes in the nuclei of his cells, the victim was unable to produce the essential enzyme that enables the body to metabolize galactose, a simple sugar found in milk and other dairy products. Unless an infant born with the defect is quickly placed on a milk-free diet, he faces malnutrition, mental retardation and even death...

Author: /time Magazine | Title: Science: Transplanting a Gene | 10/25/1971 | See Source »

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