Genes - Outline Genes and Environment Big Picture Genotype...

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1 Genes and Environment Outline Big Picture Genotype and Phenotype Studying Genes and the Environment Nature Nurture The Big Picture……. . The Big Picture…. Genes Affect Behavior animals: selective breeding humans: heritable characteristics The Big Picture…. . Genes the environment are a single system Gene Activation Behavior Proteins Physiological systems Internal (chemical) Environment External Environment (sights, sounds, etc.) The Big Picture…. .. expression : the production of a protein at the “instruction” of the genes Genes are active over the course of the lifespan genes are expressed at different times during the lifespan
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2 Outline Big Picture Genotype and Phenotype Definitions Laws An example Sex Linked Studying Genes and the Environment The basics Chromosome Group of nucleic acids and proteins Carries multiple genes Humans have 23 pairs of chromosomes Gene A unit of heredity that contributes to some characteristic Allele Alternate forms of a gene We’re all human - there are no subspecies Genotype and Phenotype genotype : the genetic endowment of an individual
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Genes - Outline Genes and Environment Big Picture Genotype...

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