IQ scores for fraternal twins are more alike than those of ordinary siblings because
A)parents tend to treat fraternal twins alike.
B)the genetic make-up of fraternal twins is exactly the same.
C)fraternal twins are always the same sex.
D)fraternal twins are not identical but are more genetically alike than ordinary siblings.

Question

Quizplus · Accepted Answer

Fraternal twins often experience more similar environments than ordinary siblings because they are raised in the same household at the same time, sharing experiences more closely. This can lead to similarities in IQ scores due to environmental factors rather than genetic ones.

IQ Scores for Fraternal Twins Are More Alike Than Those