The data in the graph below show the concordance between identical twins and same-sex fraternal twins for five complex traits. Based on these data, which of the traits shows the GREATEST effect of heredity relative to environment?
A)trait M
B)trait H
C)trait K
D)trait L
E)trait Q

Question

The data in the graph below show the concordance between identical twins and same-sex fraternal twins for five complex traits. Based on these data, which of the traits shows the GREATEST effect of heredity relative to environment? 
A)trait M 
B)trait H 
C)trait K 
D)trait L 
E)trait Q

Quizplus · Accepted Answer

Trait K shows the greatest difference in concordance between identical twins and same-sex fraternal twins, indicating the strongest influence of heredity relative to environment. The concordance rate for identical twins is approximately 0.8, while the concordance rate for same-sex fraternal twins is around 0.4. This suggests that trait K is heavily influenced by genetic factors, with only a moderate contribution from environmental factors.

The Data in the Graph Below Show the Concordance Between