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psy1102 midterm 1 notes.docx

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Behavior geneticsPower and limits of genetics and environmental influences on behaviorEnvironmentEvery nongenetic influence from prenatal nutrition to the ppl and things around usChromosomesThreadlike structures made of DNA molecules that contain the genesDNAA complex molecule containing the genetic information that makes up the chromosomes GenesThe biochemical units of heredity that make up the chromosomesGenomeComplete instructions for making an organism it consists of all the genetic material in that organisms chromosomeIdentical twins Developed from a single fertilized egg that split into two creating two genetically identical organismsFraternal twinsDeveloped from separate fertilized eggs like bro and sis just shared the same fetal environmentTemperamentA persons characteristic emotional reactivityintensityMolecular geneticsthe subfields of biology that studies the molecular structure and function of genesHeritability Proportion of variation among individuals that we can attribute to genes InteractionsThe interplay that occurs when the effect of one factor ie environment depends on another factor heredity EpigeneticsStudy of influences on gene expression that occur without a DNA changeEvolutionary psychologyStudy of the evolution of behavior and the mind using principles of natural selectionNatural selection The principle that among the range of inherited trait variations those that lead to increased reproductionsurvival will most likely be passed into succeeding generationMutationA random error in gene replication that leads to a changeGender In psychology the biologicallysocially influenced characteristics by which ppl define malefemaleCultureEnduring behaviors ideas attitudes values and traditionsNormAn understood rule for accepted and expected behaviorprescribes proper behaviorIndividualism Giving priority to ones own goals over group goals and defining ones identity in terms of personal attributes rather than group identifications Collectivism
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