Identical twins often have similar interests even if they were not raised together. This shows how

influences personality development.

Genetics can play a major role in shaping a person's interests and personality traits. Studies have shown that identical twins, who share the same genetic makeup, are more likely to have similar interests and behaviors compared to fraternal twins or non-twin siblings. This suggests that genetics contribute to the development of certain aspects of personality, such as interests, preferences, and tendencies.

However, it is important to note that genetic factors are just one piece of the puzzle when it comes to personality development. Environmental influences, such as upbringing, social interactions, and life experiences, also play a significant role in shaping a person's personality. While identical twins may have similar interests due to their genetic similarities, they may still have differences in their personalities based on their unique experiences and environments.