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Unformatted text preview: Nature-Nurture Debate How do we become who we are? Is it our biology or is it our social interactions? Nature or Nurture The debate centers around the origin of nehavior. Does it arrive from o Nature-genes o Nurture-enviro Answer is BOTH! Nature-Genes o Genes come in pairs in the DNA strands in our chromosomes e/ chromo has 2 alleles e/ allele has 1 version of a gene so 2 genes for e/ chromosome What genes do o Influence through building and modifying structure of the body o Influence the production and activity of protein molecules o Genes can influence behavior by influencing the dvlp of areas of the brain Gene actions o Single gene can have multiple effects on different phenotypes (pleitorophy) o Many genes can affect a phenotype (polygenic) Most behaviors phenotypes are polygenic o Some genes impact influence by impacting sets of other genes ( epistatic) Nurture- Enviroment o Enviro- wat is it Womb, diet, parents, school, work, friends...
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- Fall '07