Twin studies most clearly indicate that ________ exert(s)a strong influence on the development of our unique personality traits.

Question

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Twin studies involve comparing the similarity in personality traits between identical twins (who share 100% of their genes) and fraternal twins (who share about 50% of their genes on average). If identical twins are more similar in their traits than fraternal twins, it suggests a genetic influence on those traits. This strongly supports the idea that person-to-person genetic variations influence the development of our unique personality traits.

Twin Studies Most Clearly Indicate That ________ Exert(s)a Strong Influence