If a trait has a heritability of 0.5, this means that
A) all variation in the population is caused by genotypic differences.
B) all variation in the population is caused by environmental differences.
C) the variation in the population is the result of epigenetic effects.
D) the genotype and environment contribute equally to the variation seen in the population.
E) None of these is true.

Question

Quizplus · Accepted Answer

A heritability of 0.5 indicates that 50% of the variation in the trait within the population can be attributed to genetic differences among individuals, while the other 50% is due to environmental factors. Therefore, both genotype and environment contribute equally to the variation seen in the population.

If a Trait Has a Heritability of 0