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Word: polygenicâ (lookup in dictionary) (lookup stats)
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THIS INTERACTION between environment and heredity is one of the factors that make it so difficult to change human characteristics. Another is that nearly all behavioral traits are polygenic???dependent on several genes. But even so complex a trait as intelligence may eventually come under the control of molecular biologists. Some scientists fantasize that super-geniuses will some day be produced by increasing brain size, through either genetic manipulation or through transplantation of brain cells to newborn infants or to the fetus in the womb. (Such cells might be synthesized in the laboratory or developed by taking bits of easily...

Author: /time Magazine | Title: Special Section: THE MIND: From Memory Pills to Electronic Pleasures Beyond Sex | 4/19/1971 | See Source »

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