Narrow-sense heritability | definition of narrow-sense heritability by Medical dictionary
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narrow-sense heritability the proportion of variance among PHENOTYPES in a population that can be attributed to additive genetic variance, the latter being the sum of the average effects of all the genes carried in the population that affect a particular character. Narrow sense-HERITABILITY is concerned with how much of a parent's phenotype is inherited by its offspring and often is estimated from the results of selection experiments. Compare BROAD-SENSE HERITABILITY.