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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: S 8 tjedana kod 75% embrija desna ruka je dominantna. Ostalih 25% podijeljeno je na dva jednaka dijela, od kojih je kod jednog dominantna lijeva ruka, a kod drugog dijela još ne postoji razlika. To je prvi dokaz ponašanja kao dešnjak odnosno ljevak.

All ages referenced to fertilization, not last menstrual period.
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