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Lost twins reunited4/12/2023 Also, genes do significantly affect mental ability, but in individual cases like these twins, the effects may be less salient." "Also, not all traits are equally affected by genes and environments-so it is impossible to say if nature or nurture is more important-it is specific to specific traits. "The study shows in a dramatic way (identical twins raised indifferent cultures) that genetics influences many traits, but all traits are a complex mix of genetics and environments," she said. Segal also said that the study sheds new light on the nature vs nurture debate. "Most striking to me-both were short and did not reveal their height to people!" "The findings show, that despite cultural differences, some traits remain remarkably similar in identical twins, demonstrating genetic effects, " she told Newsweek. One of the authors of the report is Nancy Segal, a professor and director of the Twin Studies Center at California State University in Fullerton. The study said that the findings enhance understanding of the influences of "genetic, cultural, and environmental influences on human development." This, in particular, indicates the role that genetics is thought to have in crafting a person's personality, as the adoptive twin showed these traits despite her difficult upbringing. The study said it was particularly notable that the twins were both very conscientious, meaning they were well-organized and striving for success. Woman Pregnant With Third Set of Twins in Two Years: 'Unheard Of'.Newborn Elephant Twins Saved From Drowning as Mom Looked on Helpless.'Miracle' Conjoined Twins Born Fused at Chest 'Constantly Hug Each Other'.The study said that similarities between the twins were "evident" in "personality, self-esteem, mental health, job satisfaction and medical life history." While their IQ difference was notable, their similarities in personalities were less surprising, and in line with existing research on twin genetics. However, despite the difference in IQ between the pair, their personality scores were almost identical. The twin living in South Korea described a more loving family environment than her sister, who suffered disruption in her home life, including her adoptive parents divorcing. While researchers are not certain what caused the drastic IQ difference, the study noted that the adopted twin had a more disruptive upbringing than the sister, who had been raised within her biological family. This contradicts existing research that says identical twins usually have no more than 7 points difference in their IQ. Tests revealed that the adopted twin had an IQ 16 points lower than her long-lost sister. Researchers found that the twins had "substantial differences" in their IQ. and South Korea were found to have a "substantial" difference in their IQs. ![]() A pair of twins raised separately in the U.S.
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