325usum08RegGE1-1 - Regulating Gene Expression Bonus #1 due...

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Bonus #1 due today Bonus #2 due 7/30 Exams back M 6/30 Regulating Gene Expression
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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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Traits Genes Genes code for proteins. These proteins give rise to traits…
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Traits Genes Genes code for proteins. These proteins give rise to traits… It is rarely this simple.
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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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This article, shows how even today people see nature and nurture as opposing each other: The Pathogenesis of the Glaucomas: Nature versus Nurture Mackey, et al., Clinical & Experimental Opthamology vol 36, pg 297, April 2008
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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) % Identical twins reared together 80 Identical twins reared apart 72 Fraternal twins reared together 43 Biological siblings 34 Parents and children living together 26 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.; Pogue-Geile, Michael F.; Psychological Bulletin, Vol 110(3), Nov 1991. pp. 520-537. And two books by Matt Ridley: Nature via Nurture (2003) and Genome: the Autobiography of a Species in 23 Chapters (1999)
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Intelligence Correlation of IQ Inheritance : % The same person tested twice 87 Identical twins reared together 86 Identical twins reared apart 76 Fraternal twins reared together 55 Biological siblings 47 Parents and children living together 40 Parents and children living apart 31 Adopted children living together 0 Unrelated people living apart 0 From two books by Matt Ridley: Nature via Nurture (2003) and Genome: the Autobiography of a Species in 23 Chapters (1999)
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When the environment is equal (everyone has access to resources), genetic differences are magnified. When environments are different (only a few have access to resources), environmental differences are magnified.
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Proof or disproof? Correlation of IQ Inheritance : % The same person tested twice 87 Identical twins reared together 86 Identical twins reared apart 76 Fraternal twins reared together 55 Biological siblings 47 Parents and children living together 40 Parents and children living apart 31 Adopted children living together 0 Unrelated people living apart 0 From two books by Matt Ridley: Nature via Nurture (2003) and Genome: the Autobiography of a Species in 23 Chapters (1999)
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Can we see a genetic basis for complex behaviors?
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Voles Prairie Monogamous Both parents care for young Montane Nonmonogamous Mother cares for young briefly
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325usum08RegGE1-1 - Regulating Gene Expression Bonus #1 due...

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