If a Specific Trait That Is Found in One Member

Multiple Choice

If a specific trait that is found in one member of a set of identical twins is found in the other 90 percent of the time,yet is found less than 25 percent of the time in both members of sets of nonidentical twins,we would conclude that the environment:

A) was the major cause of the trait
B) played a relatively great role in determining the trait
C) was as important as the genotype in determining the trait
D) played a relatively minor role in determining the trait