For any trait, a high MZ and a low DZ concordance value supports the probability that the trait is most likely due to
A) genetic factors.
B) environmental factors.
C) weak gene-environment interaction.
D) strong gene-environment interaction.
E) genetic mutation.

Question

Quizplus · Accepted Answer

A high concordance rate in monozygotic (MZ) twins, who share 100% of their genes, compared to a lower concordance rate in dizygotic (DZ) twins, who share about 50% of their genes, suggests that genetic factors play a significant role in the trait.

For Any Trait, a High MZ and a Low DZ