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Mod 14
Predicticting individual differences
Term | Definition |
---|---|
Heredity | The genetic transfer of characteristics from parent to offspring (46 chromosomes containing DNA) |
Genes | Segments of DNA |
Monozygotic | (Identical) Twins -Single egg splits in two -Genetically identical |
Dizygotic | (Fraternal) twins -2 eggs released -No more genetic similarity than siblings |
Identical twin studies | reveal much about the influence of nature vs nurture |
Identical twins reared apart | -Same nature, different nurture -Show similar fears, tastes, abilities, & interests, incidence of psychological disorders |
Heritability | -Variation among individuals in a group that we can attribute to genes -Similarity in environment increases heritability |
Epigenetics | The study of environmental influences on gene expression Example: Development of cancer for a smoker vs. non-smokers with risky genes |