Genetics - Genetics § Human Genome § Behavioral Genetics...

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Unformatted text preview: Genetics § Human Genome § Behavioral Genetics § Family Studies § The Human Genome ¡ Genome refers to the complete set of genes that an organism possesses. ¡ Human genome contains 30,000–80,000 genes on 23 pairs of chromosomes. ¡ Human Genome Project is designed to sequence the entire human genome—i.e., identify the particular sequence of DNA molecules in human species. ¡ But identifying sequence of DNA molecules does not mean identifying the function of each molecule. The Human Genome ¡ Most genes in a human genome are the same for all humans. ¡ Small number of genes are different for different individuals, including genes that indirectly code for physical traits and for personality traits. ¡ Behavioral geneticists attempt to determine the degree to which individual differences in personality (for example) are caused by genetic and environmental differences. Goals of Behavioral Genetics ¡ Determine the percentage of individual differences in a trait that can be attributed to genetic differences and percentage that can be attributed to environmental differences. ¡ Determine the ways in which genes and environment interact and correlate with each other to produce individual differences. ¡ Determine precisely where in the “environment” environmental effects exist—e.g., parental socialization, different teachers to which children are . Misconceptions About Heritability ¡ Heritability CANNOT be applied to single individual ¡ Heritability is NOT constant or immutable ¡ Heritability is NOT a precise statistic Nature-Nurture Debate Clarified ¡ No such debate at the individual level....
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This note was uploaded on 01/06/2012 for the course PSYCH 2316 taught by Professor Michaelrose during the Spring '11 term at Collins.

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Genetics - Genetics § Human Genome § Behavioral Genetics...

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