PSY 1102 Study Guide - Midterm Guide: Fetus, Factor Analysis, The Sequence

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1102
• Professor: Victor Emerson

Document Summary

Behavior genetics: the relative power & limits of genetic & environmental influences on behavior. Genes: biochemical units of heredity that make up chromosomes (30,000) Each somatic cell contains 46 chromosomes (dna) that codes for the entire body. Dna (deoxyribonucleic acid): molecule containing genetic info that makes up chromosomes. Identical: from a single fertilized egg that splits in 2, creating genetically identical organisms: have the same genes, but don"t always have the same # of copies of those genes. Fraternal: from diff. fertilized eggs- genetically no closer than bros/sisters, share a fetal environment. Identical twins reared apart had somewhat different personalities vs. those reared together. Critique: you can find similarities between any 2 random people of same age, sex, and ethnicity that grew up in similar economic and cultural setting. Adoption studies created 2 groups: genetic relatives (biological) & environmental relatives (adoptive) People who grow up together do not much resemble one another in personality.