PSYB32H3 Lecture Notes - Lecture 2: Light Skin, Cytosine, Egg Cell
Document Summary
Field of study that examines both genetics and environment that. Focuses on genetics, shows us that heritability factors shaped by. 2 methods: twin studies, and adoption studies lead to individual differences. 2 sets of twins, monozygotic (share identical genes) Dizygotic comes from different eggs, only 50% genetic overlap. Researchers takes identical twins who were separated at birth, raised in environment, measure how environments influences. Lack of control of circumstances, its hard to obtain/ small samples. Fact that parents provide genes, and rearing environment, but. Relationship of the adopted adopted children it removes the two factors child and the adoptive parents 2. Limitations: only useful if researchers can obtain data from both types of relationship selective placement: tendency adoptive agencies who match the biological parents characteristics. Even select parents who are related to child in some way. Adoptive homes then be above avg. privileged in certain factors, adoptive homes tend to be homogenous.
