Classify each statement about the heritability of a phenotype according to the narrow$-$sense heritability value it describes.

$0\mathrm{.}0$

$5$

$0\mathrm{.}98$

Answer Bank

Half of the observed variation is due to the additive genetic effects of alleles.

Parents and their offspring share heritable phenotypes.

The phenotypic variance is determined by environmental variance.

Phenotypic differences result from genetic variation.

The phenotype of offspring is not related to the phenotypes of parents.