Module 14: Behavioral Genetics Flashcards
behavioral genetics
study of the relative power and limits of genetic and environmental influences on behavior
chromosomes
threadlike structures of dna molecules, contain genes, 46 in total, 23 from each parent
DNA
complex molecule containing genetic information
genes
heredity that makes up chromosomes
genome
complete instructions for making organisms
twin studies
psychologists use twin studies to help determine whether a behavior is genetic or not
monozygotic twins
identical twins, share 100% of their dna
dizygotic
share only 50% of their genes
heritability
statistics used to determine how much of the variation among members of a group is attributable to genes
epigenetics
genes can be activated or inactivated, this studies the mechanic in which environments trigger/block genetic expression