You are measuring the trait of friendliness in a set of 100 monozygotic twins. You notice that for almost all of the twins, when one is high on this measure, the other twin is also high. We would say that the trait of friendliness has
A)high concordance
B)low reaction range
C)high selection pressure
D)low heritability
E)high genetic flow

Question

Quizplus · Accepted Answer

High concordance in monozygotic twins regarding a trait like friendliness indicates that if one twin exhibits the trait, the other is likely to as well, suggesting a significant genetic component.

You Are Measuring the Trait of Friendliness in a Set