Behaviour genetic studies have revealed that fraternal twins reared together and identical twins reared together are equally similar on trait Q. This indicates the importance of

Question

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If fraternal twins (who share about 50% of their genes) and identical twins (who share about 100% of their genes) are equally similar on a trait when reared together, it suggests that the shared environment, rather than genetics, plays a significant role in influencing that trait.

Behaviour Genetic Studies Have Revealed That Fraternal Twins Reared Together