A trait with high heritability responds rapidly to selection, whereas a trait with a low heritability responds slowly or not at all.

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Quizplus · Accepted Answer

This is because heritability is the proportion of variation in a trait that is due to genetic factors. If a trait has a high heritability, then genetic factors play a stronger role in determining that trait, and therefore selecting individuals with desirable traits will cause a more rapid change in the trait's frequency within a population over time. On the other hand, if a trait has a low heritability, then genetic factors play a smaller role, and selecting individuals with desirable traits will have less of an impact on the trait's frequency within a population.

A Trait with High Heritability Responds Rapidly to Selection, Whereas