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The Endowment for Human Development
The Endowment for Human Development
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Right- and Left-Handedness


8 weeks

From The Biology of Prenatal Development.Buy Now

Script: Iki 8 savaitės pabaigos 75% embrionų dominuoja dešinė ranka. Likusioji embrionų dalis lygiai pasiskirsto į tuos, kuriuose dominuoja kairė ranka, ir tuos, kuriuose dominavimo nėra. Taip pasireiškia ankstyvasis dešiniarankiškumas ir kairiarankiškumas.

All ages referenced to fertilization, not last menstrual period.
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