When Identical Twins Are Raised Together in the Same Home

question 199

Multiple Choice

When identical twins are raised together in the same home, and they show different susceptibilities to a given psychological disorder, it indicates that:

• A)environmental factors influence the expression of the disorder
• B)genetic factors have more influence than environmental factors in the disorder
• C)both genetics and environmental factors contribute equally to the disorder
• D)neither genetic factors nor environmental factors contribute to the disorder