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The Genetic Correlation Between Procrastination and Impulsivity
Twin Research and Human Genetics, 2014The reported genetic correlation of 1.0 between the traits of procrastination and impulsivity (Gustavson, D. E., Miyake, A., Hewitt, J. K., & Friedman, N. P. (2014). Psychological Science), which was held to support an evolutionary origin of the relationship between the two traits, was tested in data from two large samples of twins from Australia ...
Loehlin, John C., Martin, Nicholas G.
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Assortative mating and the genetic correlation
Theoretical and Applied Genetics, 1982The effect of assortative mating on the genetic correlation between traits X and Y is considered. Assortation on trait X changes the magnitude of the genetic correlation but not its sign. There are two situations depending on the signs of the correlation between mates (ρ) and of the random mating genetic correlation (θ): 1) if sign (θ) = sign (ρ), then
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Oligodendrogliomas: clinical and genetic correlations
Current Opinion in Neurology, 2001Oligodendrogliomas, once obscure, are now recognized as a relatively common form of primary brain tumour, and are among the most chemosensitive of all solid human malignancies. New histopathological, molecular, and genetic information has, for the first time, allowed the distinction of several subtypes of human glioma with predictable biological and ...
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A TEST OF THE HYPOTHESIS THAT CORRELATIONAL SELECTION GENERATES GENETIC CORRELATIONS
Evolution, 2012Theory predicts that correlational selection on two traits will cause the major axis of the bivariate G matrix to orient itself in the same direction as the correlational selection gradient. Two testable predictions follow from this: for a given pair of traits, (1) the sign of correlational selection gradient should be the same as that of the genetic ...
Derek A, Roff, Daphne J, Fairbairn
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Genetic Correlations with Multiple Alleles
Biometrics, 1960Hogben [1932] gave the values for filial and fraternal correlations for matings involving two alleles in a panmictic population. The subject has been considered in great detail by Li [1955], but the known results are restricted to the case of two alleles. Consequently, if it is desired to compare a correlation derived from actual experimental data with
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1997
The last chapter examined the genetic basis of the resemblance between parents and offspring for a single trait. However, it is common experience that traits are not inherited as independent units, but that several traits tend to be associated with each other.
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The last chapter examined the genetic basis of the resemblance between parents and offspring for a single trait. However, it is common experience that traits are not inherited as independent units, but that several traits tend to be associated with each other.
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The effect of simultaneous selection on the genetic correlation
Theoretical and Applied Genetics, 1995The theoretical effect of simultaneous selection on the genetic correlations between two traits over 20 generations was examined using simulation. For each generation, a population of 50 male and 50 female diploid gen otypes with 15 loci, each with two alleles, was synthesized. None of the loci exhibited dominance.
I, McMillan +3 more
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Genetic Correlates of Adult Attachment Style
Personality and Social Psychology Bulletin, 2008Attachment theory attempts to explain effects of social experiences, not genes, on personality development. Most studies of the development of attachment insecurities support this emphasis on social experiences rather than genes, although there are exceptions.
Omri, Gillath +3 more
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The effects of phenotypic plasticity on genetic correlations
Trends in Ecology & Evolution, 1991Recent theory suggests that genetic correlations should help to predict the simultaneous response to selection of two or more traits, and much recent research has been directed towards understanding the sources of variation in genetic correlations.
Stearns S, de Jong G, Newman B
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Genetic Correlations: The Quantitative Genetics of Evolutionary Constraints
1987Dictionary definitions of “constraint” generally indicate some aspect of restricting or confining the possible states or actions of individuals or systems. In the disciplines of linear and dynamic programming, a constraint is a function or inequality specifying the range of permissible values of variables. If the constraints were removed, the dynamical
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