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Psychology Unit 3C

TermDefinition
Behavior Genetics The power of the relative power and limits genetic and environmental influences on behavior
Environment Every nongenetic influence from prenatal nutrition to the people and things around us
Chromosomes Threadlike structures of DNA molecules that contain genes
DNA A complex molecule containing the genetic information that makes up the chromosomes
Genes The biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing a protein
Genome The complete instructions for making an organism consisting of all the genetic material in the organisms chromosomes
Identical twins Twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms
Fraternal twins Twins who develop from separate fertilized eggs. They are genetically no closer then brother and sisters, but they share a fetal environment
Heritability The proportion of variation among individuals that we can attribute to genes. The heritability of a trait may vary depending on the range of populations and environments studied
Interaction The interplay that occurs when the effect of are factors depends on another factor.
Molecular Genetics The subfield of biology that studies the molecular structure and function of genes
Evolutionary psychology The study of the evolution of behavior and the mind using principles of natural selection
Mutation A random error in gene replication that leads to a change
Created by: Zoebelle7
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