A Heritability Value of 0

Question

A heritability value of 0.997 indicates which of the following?
A) The majority of the phenotypic variation has a genetic basis.
B) The majority of the phenotypic variation has an environmental basis.
C) The trait is polygenic.
D) There is a significant difference between the two strains.
E) None of these choices are correct.

Accepted Answer

A heritability value of 0.997 indicates that a vast majority of the phenotypic variation is due to genetic factors. In other words, genetics play a dominant role in determining the phenotype of the trait being studied.