Which of the following contribute to broad-sense heritability but not narrow-sense heritability? Dominance variance, environmental variance, heterozygous variance, or genotype-by-environment covariance.
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Step 1: Broad-sense heritability includes all sources of genetic variation, including dominance variance, environmental variance, and genotype-by-environment covariance. Show more…
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Identify descriptions as broad sense or narrow sense heritability in sexually reproducing, diploid populations. Broad sense Narrow sense includes genetic variance due to epistasis, dominance, and additive effects the proportion of phenotypic variance due to total genetic variance describes how closely offspring resemble their parents the proportion of phenotypic variance due to only the additive effects of alleles can be estimated to predict evolution through natural selection is a useful method to measure genetic versus environmental effects on phenotypic variance
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The narrow-sense heritability of ear length in Reno rabbits is $0.4 .$ The phenotypic variance $\left(V_{p}\right)$ is $0.8,$ and the environmental variance $\left(V_{\mathrm{E}}\right)$ is $0.2 .$ What is the additive genetic variance $\left(V_{A}\right)$ for earlength in these rabbits?
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