If Broad-Sense Heritability for a Trait Is Very High and Narrow-Sense

question 11

Multiple Choice

If broad-sense heritability for a trait is very high and narrow-sense heritability is very low, which of the following statements must be TRUE?

• A) Additive variance must be high relative to total phenotypic variance.
• B) Dominance variance must be high relative to total phenotypic variance.
• C) Environmental variance must be high relative to total phenotypic variance.
• D) Genotypic-environmental covariance must be high relative to total phenotypic variance.
• E) No conclusions can be drawn without additional information.

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