Jaymie TicknorDevelopmental Psychology 3620 Sect. 85316 September 2013Lecture #7Chapter #4 PowerpointGenetic Disorders: typically happen during the prenatal stage; not affected by environmentChromosome Disorders: Down syndrome: one extra chromosome #21Klinefelter syndrome: XXY in men’s 23rd pairTurner syndrome: X0 (zero) in women’s 23rd pair; short stature, webbing of neckFragile X syndrome: one gene segment (CGG) on the X chromosome is repeated 200 times, rather than 5-40 times; mental retardation and learning disabilities; twice aslikely in males who have typical facial features and possible autismGene-environment Interaction:Passive Genes: when one’s genetic endowment already matches with environmentActive Genes: when one’s genetic endowment becomes a driving force for children to seek out experiences that fit their genetic endowments; does not match environmentEvocative Genes: when children’s genetic endowment causes them to act in a way that draws out or “evokes” certain responses from those around themTemperament: personality of infants; mostly
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