Genética del desarrollo y la conducta

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.