title: [Genetics of development and behaviour].
abstract: Quantitative genetics can make a significant contribution to disentangle the relative influence of genetics and environment on human development and its disorders. Estimates of Pearson s correlation coefficients between siblings, mono and dizogotic twins reared together or apart, allows the calculation of heredability, that is, the contribution of genetics to the variance of a given trait. In the case of many aspects of intellectual development, heredability is around 50%. The rests is attributable to the influence of environment. The influence of genetics on development should be considered as a trend, a risk, rather than a programmed fate.
authors.affiliation: Hospital Nacional de Pediatría Prof. Dr. Juan P. Garrahan. hlejarraga@garrahan.gov.ar
authors.forename: Horacio
authors.initials: H
authors.lastname: Lejarraga
mesh_terms: D002648:Child; D002652:Child Behavior / Q000502:physiology; D002657:Child Development / Q000502:physiology; D030342:Genetic Diseases, Inborn; D055614:Genetic Phenomena; D006801:Humans