A given trait has a heritability of 75 percent. This means
A)75 percent of people show a genetic inheritance for the trait.
B)75 percent of the genes associated with the trait have been identified.
C)75 percent of the trait is genetically controlled.
D)75 percent of the variability among people on the trait can be explained by genetic factors.
E)people have a 75 percent chance of inheriting the trait when the gene is present.

Question

Quizplus · Accepted Answer

Heritability is a measure of how much of the variation in a trait among individuals in a population can be attributed to their genetic differences. Therefore, if a trait has a heritability of 75 percent, it means that 75 percent of the variability in that trait across the population can be explained by genetic factors.

A Given Trait Has a Heritability of 75 Percent