Imagine that a researcher estimates the heritability coefficient for a particular trait is extremely low (i.e. close to, if not actually, zero). Given this, all other things being equal, what would you expect the concordance rate to be like for that trait measured among pairs of twins raised in different environments?

Question

Quizplus · Accepted Answer

If the heritability coefficient for a trait is extremely low, it suggests that genetic factors have little to no influence on the variation of that trait in the population. Therefore, the concordance rate (the rate at which both twins exhibit the trait) for that trait among pairs of twins, whether identical or fraternal, raised in different environments would also be expected to be low, as environmental factors would play a more significant role in the expression of that trait.

Imagine That a Researcher Estimates the Heritability Coefficient for a Particular