Londra and Sondra are identical twins who have been raised together in the same home. Londra has developed a psychological disorder, but Sondra does not appear to have the same disorder. This information could be used as evidence to suggest that

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

Question

jennifer Nguyen · Accepted Answer

Final Answer : B, Explanation :  Since Londra and Sondra are identical twins who have been raised together in the same home, it can be assumed that their genetic makeup is almost identical. Therefore, any differences between the two twins can likely be attributed to environmental factors, rather than genetic factors. Since Londra has developed a psychological disorder, but Sondra has not, this suggests that environmental factors (such as different life experiences, for example) may have had more influence on the development of the disorder than any genetic factors.

Definitions

Learning Objectives

Learning Objectives

Related questions