Presentation on theme: "Unit 3-C (B): Twin Studies"— Presentation transcript:
1 Unit 3-C (B): Twin Studies Mr. McCormickA.P. Psychology
2 Do-Now (Discussion)Think about someone you know who was adopted as a child:In what ways are their personalities similar to their adoptive parent(s)? In what ways are they different?In what ways are their personalities similar to their biological parent(s), if known?What do you feel has a greater influence on one’s personality – one’s biological make-up or one’s familial environment?
3 Identical Vs. Fraternal Twins Identical Twins:Twins who develop from a single fertilized egg that splits in two, creating genetically identical organismsSame sex onlyFraternal Twins:Twins who develop from separate fertilized eggsGenetically no closer than brothers and sisters, but they share a fetal environmentSame or opposite sex
6 Separated TwinsIdentical twins who have been separated since birth tend to share many cognitive, behavioral, and social similarities with one another (more so than fraternal twins).Adopted children tend to share many cognitive, behavioral, and social similarities, with both their adoptive and biological parents; however, there tend to be stronger similarities with biological parents.
7 Genetics, Environment, and Personality: Twin Studies Assignment:Read “Genetics, Environment, and Personality”Answer Questions #1-3
8 ReviewDifferentiate between Identical Twins and Fraternal Twins in terms of the following:Prenatal DevelopmentGenetic Make-upPhysical AppearanceTo what extent do you attribute Nature and Nurture to the following:Personality“Intelligence”/IQ
9 HomeworkResearch Study Response #3: “Are You a ‘Natural?’”(Pgs )Chapter 4 Quiz: “Nature, Nurture, and Human Diversity”Unit 3 Test: “Biological Bases of Behavior”Chapter 6 Outline: “Sensation and Perception”Unit 3 Project: “3-D Brain Model”