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  • narrow-sense heritability — The proportion of the phenotypic variance that is due to variation in breeding values; the proportion of the phenotypic variance that is due to additive genetic variance …   Glossary of Biotechnology

  • Heritability — is the proportion of phenotypic variation in a population that is due to genetic variation between individuals. Phenotypic variation among individuals may be due to genetic, environmental factors, and/or random chance[1]. Heritability analyzes… …   Wikipedia

  • heritability — The degree to which a given trait is controlled by inheritance, as opposed to being controlled by non genetic factors. See: broad sense heritability; narrow sense heritability …   Glossary of Biotechnology

  • heritability — 1. In psychometrics, a statistical term used to denote the extent of variance of an individual s total score or response that is attributable to a presumed genetic component, in contrast to an acquired component. 2. In genetics …   Medical dictionary

  • Heritability of autism — Autism has a strong genetic basis, although the genetics of autism is complex and it is unclear whether ASD is explained more by multigene interactions or by rare mutations with major effects. [cite journal |journal= Nat Rev Genet |year=2008… …   Wikipedia

  • Quantitative genetics — Part of a series on Genetics Key components Chromosome DNA • RNA Genome Heredity Mutation Nucleotide Variation …   Wikipedia

  • Falconer's formula — is used to determine the genetic heritability of a trait based on the difference between twin correlations.The formula is hb2 = 2(rmz rdz), where hb2 is the broad sense heritability, rmz is the (monozygotic) identical twin correlation, and rdz is …   Wikipedia

  • selection response — The difference between the mean of the individuals selected to be parents and the mean of their offspring. Predicted response is calculated as the product of narrow sense heritability and selection differential …   Glossary of Biotechnology

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

  • Cyril Burt — in 1930 Sir Cyril Lodowic Burt (3 March 1883 – 10 October 1971) was an English educational psychologist who made contributions to educational psychology and statistics. Burt is known for his studies on the heritability of IQ. Shortly after he… …   Wikipedia

  • Intelligence quotient — IQ redirects here. For other uses, see IQ (disambiguation). Intelligence quotient Diagnostics An example of one kind of IQ test item, modeled after items in the Raven s Progressive Matrices test …   Wikipedia

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