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  2. Genetic correlation - Wikipedia

    en.wikipedia.org/wiki/Genetic_correlation

    A genetic correlation is to be contrasted with environmental correlation between the environments affecting two traits (e.g. if poor nutrition in a household caused both lower IQ and height); a genetic correlation between two traits can contribute to the observed correlation between two traits, but genetic correlations can also be opposite ...

  3. Gene–environment correlation - Wikipedia

    en.wikipedia.org/wiki/Gene–environment_correlation

    Gene–environment correlations (or rGE) is correlation of two traits, e.g. height and weight, which would mean that when one changes, so does the other. Gene–environment correlations can arise by both causal and non-causal mechanisms. [1] Of principal interest are those causal mechanisms which indicate genetic control over environmental ...

  4. Heritability of IQ - Wikipedia

    en.wikipedia.org/wiki/Heritability_of_IQ

    In terms of correlation statistics, this means that theoretically the correlation of tests scores between monozygotic twins would be 1.00 if genetics alone accounted for variation in IQ scores; likewise, siblings and dizygotic twins share on average half alleles and the correlation of their scores would be 0.50 if IQ were affected by genes ...

  5. Genome-wide association study - Wikipedia

    en.wikipedia.org/wiki/Genome-wide_association_study

    This study type asks if the allele of a genetic variant is found more often than expected in individuals with the phenotype of interest (e.g. with the disease being studied). Early calculations on statistical power indicated that this approach could be better than linkage studies at detecting weak genetic effects. [11]

  6. F-statistics - Wikipedia

    en.wikipedia.org/wiki/F-statistics

    This correlation is influenced by several evolutionary processes, such as genetic drift, founder effect, bottleneck, genetic hitchhiking, meiotic drive, mutation, gene flow, inbreeding, natural selection, or the Wahlund effect, but it was originally designed to measure the amount of allelic fixation owing to genetic drift.

  7. Coefficient of relationship - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_relationship

    The coefficient of relationship is a measure of the degree of consanguinity (or biological relationship) between two individuals. The term coefficient of relationship was defined by Sewall Wright in 1922, and was derived from his definition of the coefficient of inbreeding of 1921.

  8. Heritability - Wikipedia

    en.wikipedia.org/wiki/Heritability

    Heritability increases when genetics are contributing more variation or because non-genetic factors are contributing less variation; what matters is the relative contribution. Heritability is specific to a particular population in a particular environment.

  9. Phenotypic integration - Wikipedia

    en.wikipedia.org/wiki/Phenotypic_integration

    The most common form of selection on phenotypic integration is correlational selection. Correlational selection is a form of natural selection that favors certain combinations of traits (phenotypic integration). It can promote both genetic correlations and high levels of genetic variation.