L33 Psych 353 Lecture Notes - Lecture 4: Human Genome Project, Human Genetic Variation, Connectome
Document Summary
2 of human genome project: most genes in a human genome are the same for all human (99% in common with each other, and 98% in common with. Controversy about genes and personality: behavioral geneticists attempt to determine the degree to which individual differences in personality are caused by genetic and environmental differences, highly controversial. Heritability: proportion of observed variance in group of individuals that can be explained or accounted for by genetic variance, misconceptions. Heritability cannot be applied to single individual. Is not a precise statistic: nature-nurture debated clarified. No such debate at the individual level. Influence of genes and of environment is only relevant for the discussion of group level variation: selective breeding. Can only occur if a desired trait is heritable. Cannot be ethically conducted with humans: family studies. Correlates the degree of genetic overlap among family members with the degree of similarity in personality trait.
