Fraternal twins raised together have more similar IQs than identical twins raised apart.

Question

Quizplus · Accepted Answer

This statement is false. It is well-established in research on intelligence and genetics that identical twins, who share all of their genes, have more similar IQs than fraternal twins, who share only 50% of their genes on average. Additionally, studies have shown that twins raised apart tend to have more similar IQs than would be expected by chance, suggesting that there is a genetic component to intelligence that is independent of environmental factors.

Fraternal Twins Raised Together Have More Similar IQs Than Identical