If the Correlation Between Identical Twins on Trait R Is

question 97

Multiple Choice

If the correlation between identical twins on trait R is higher than is the correlation between fraternal twins on trait R, behaviour geneticists conclude that

• A)genetic factors are important in the development of trait R.
• B)genetic factors are irrelevant to the development of trait R.
• C)environmental factors are irrelevant in the development of trait R.
• D)genetic factors and environmental factors play equivalent roles in the development of trait R.

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