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Genes and Heredity

Genes and Heredity. Chapter 2 Psychology of Childhood Dr. Greg Cook. Genetic Structures, p. 44. Karyotype, p. 43. Example of a genetic code, p. 45. Examples of gene locations, similar to p. 46. Monozygotic vs. Dizygotic Twins. Gene Defects Chromosomal Abnormalities.

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Genes and Heredity

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  1. Genes and Heredity Chapter 2 Psychology of Childhood Dr. Greg Cook

  2. Genetic Structures, p. 44

  3. Karyotype, p. 43

  4. Example of a genetic code, p. 45

  5. Examples of gene locations, similar to p. 46

  6. Monozygotic vs. Dizygotic Twins

  7. Gene Defects • Chromosomal Abnormalities

  8. Down Syndrome, p. 61

  9. Risk of Down Syndrome by Mother’s Age, similar to p. 61

  10. p. 62

  11. Ultrasound Image, Prenatal Screening for Birth Defectsp. 63

  12. Ultrasound image, twins

  13. Prenatal Screening & Genetic Testing, p. 64 • Amniocentesis, after 14th week, risk: 1/200 of causing serious problem • CVS, 8th week or after, risk is 2 X amnio risk, faster results

  14. G X E: Range of Reaction, p. 67

  15. G X E: Canalization, similar to p. 68 Canalization: genes limit the effects of the environment Experiential Canalization: the environment limits the epxression of our genes

  16. G X E: Probabilistic Epigenesis, p. 70 Fruit flies grow 2nd pair of wings. Chickens grow teeth.

  17. Heritability Estimates • See list of examples, p. 77 • See example findings from twin and adoption studies, p. 78

  18. Heritability increases with child’s age!p. 79 Niche-Picking: passive evocative active p. 69

  19. Next Class Chapter 3, please!

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