Theoretical distributions of phenotypes in the F2 generation.
The distributions were generated using the following assumptions:|
- The phenotype is controlled by a single gene.
- There is a 12-unit difference between the parents.
- The effect of the environment ranges from 0% (heritability = 100%) to 75% (heritability = 25%)
The graphs demonstrate that as the environmental influence on a phenotype increases, phenotypic variance becomes less discrete and more continuous.