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311Dsp08NvN1 - Exam#1 W 2/6 in class Review T 2/5 from 57pm...

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Exam #1 W 2/6 in class Review T 2/5 from 5-7pm in PAI 3.02
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Phenotype Genotype Dominant Recessive
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Phenotype Genotype Genes code for proteins (or RNA). These gene products give rise to traits… It is rarely this simple.
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What makes us who we are? Nature and Nurture Based on “Nature via Nurture” by Matt Ridley (2003)
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Imprinting: exposure to movement (environment) sets “mother”
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X/Y chromosomes in humans: genes = traits
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Twin studies have been used to determine the heritability of various traits.
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Types of twins: http://pennhealth.com/health_info/pregnancy/000199.htm
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Twin studies have been used to determine the heritability of various traits, but there are some caveats: How many twins have been studied? How different are the environments?
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Correlation of weight (BMI) % Biological siblings 34 Parents and children living together 26 Identical twins reared together 80 Identical twins reared apart 72 Fraternal twins reared together 43 Adopted children and parents 4 Unrelated children living together 1 *But food preference shows little genetic correlation Correlation of weight and relatedness The nature of environmental influences on weight and obesity: A behavior genetic analysis. Grilo, Carlos M.;
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