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Chapter 3 Outline - Chapter 3 Outline PSYC 201 F18 1 Nature...

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Chapter 3 Outline PSYC 201: F18 1) Nature, Nurture, and Human Diversity a) Behavior Genetics: Predicting Individual Differences i) Environment- every nongenetic influence, from prenatal nutrition to the people and things around us. ii) Behavior genetics- the study of the relative power and limits of genetic and environmental influences on behavior. iii) Genes: Our Codes for Life (1) Chromosome- threadlike structures made of DNA molecules that contain the genes. (2) DNA (deoxyribonucleic acid)- a complex molecule containing the genetic information that makes up the chromosome. (3) Genes- the biochemical units of heredity that make up the chromosomes; a segment of DNA capable of synthesizing a protein. (4) Genome- the compete instructions for making an organism, consisting of all the genetic material in that organism’s chromosomes. iv) Twins and Adoption Studies (1) Identical Versus Fraternal Twins (a) Identical twins- twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms.
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