Unit 3c Flashcards
Behavior genetics
Study of the environmental influences on bahavior
Environment
Every non-genetic influence
Chromosomes
Threadlike structures made of DNA molecules that contain genes
DNA
Contains genetic information that makes up the chromosomes
Genes
Segments of DNA capable of synthesizing protein
Genome
Instructions for making an organism
Identical twins
Develop from one egg that splits into two
Fraternal twins
Twins who develop from separate fertilized eggs
Heritability
Extent to which variation among individuals can be attributed to their different genes
Molecular genetics
Studies the molecular structure and function of genes
Evolutionary psychology
Study of evolution of behavior and the mind
Natural selection
Those traits that lead to increased reproduction will most likely be passed on to succeeding generations
Mutation
Random error in gene replication that leads to change