Donald and Ronald are identical twins who have been raised apart, in separate adoptive homes. However, both brothers have developed the same psychological disorder. This information could be used as evidence to suggest that

A) environmental factors have more influence than genetic factors in this disorder.
B) both genetic and environmental factors contribute equally to this disorder.
C) genetic factors have more influence than environmental factors in this disorder.
D) neither genetic nor environmental factors contribute to this disorder.

Question

Zybrea Knight · Accepted Answer

Final Answer : C, Explanation :  The fact that both identical twins who were raised in separate adoptive homes have the same psychological disorder suggests that there is a strong genetic component to this disorder. If the disorder was solely influenced by environmental factors, we would expect the twins to have different outcomes due to their different upbringing. Therefore, option C is the best choice.

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