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Week+2+Tuesday+fall+2010+1+Oncourse - Behavior Genetics...

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Click to edit Master subtitle style 11/17/10 Behavior Genetics To what extent do people differ because of differences in genes, environment or a combination of both?
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Click to edit Master subtitle style 11/17/10 Genetic/Environmental Links Genotypes and Phenotypes
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11/17/10 Genotype + Environm ent Phenotype Genotype internally coded, inheritable information Phenotype outward, physical or behavioral manifestation
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11/17/10 Genotypes and Phenotypes Example:
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11/17/10 Twins and Schizophrenia
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11/17/10 Twin Studies assume: Two assumptions:
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11/17/10 Not that easy – interactions between genes and environment… Do genes influence type of environment? Yes – Scarr (1993) Heredity – environment correlations Individuals “inherit” environments that may be related or linked to genetic “propensities.”
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11/17/10 Three Types of Heredity-Environment Correlations (Scarr) PASSIVE GENOTYPE -- ENVIRONMENT EFFECT: Child is the passive recipient of environments which fit genotype.
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Week+2+Tuesday+fall+2010+1+Oncourse - Behavior Genetics...

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