Twin study is for examing the influence of genetic and environment on behavial and medical traits. The researchers observed both the identical and fraternal twins and found that identical twins are more similar than fraternal twins because they are closer in the genetic parts than fraternal twins. Also, the researchers found that the genetic effect, environment and unique environments do important roles to shape people. Adaoption study is based on the record of individuals who are adopted. The advantage of adoption study is that it can help people to know the impact of environment and genetic influence in various situation. Also, people can compare them easily with others in the family. However, the disadvantage is that people cannot eaily find the difference. MISTRA (Minnesota Study of Twins Reared Apart) is that the study about twins who are seperated when they are born, and raised in the different families. The result of this study is that the twins have many similar things such as personality, interest and attitudes. This found makes people to think that these similarities are because of genetics, not environment and the difference is because of environmental effects. The one of example of this study is 'jim twins'. They have a lot of similarities such as the name of son and the number they married.
No comments:
Post a Comment