The heritability ratio of having a liver is
A) 0.0.
B) 0.25.
C) 0.75.
D) 1.0.

Question

Quizplus · Accepted Answer

The heritability ratio of having a liver is 0.0 because having a liver is not a trait influenced by genetic variation among humans; it is a basic characteristic of human anatomy that all healthy individuals possess, regardless of their genetics. Heritability ratios are used to describe the extent to which genetic differences among individuals contribute to individual differences in observable traits, and since having a liver is not variable among healthy individuals, its heritability is zero.

The Heritability Ratio of Having a Liver Is