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A stretch of DNA that determines our phenotype and in return influences how we develope.
- Organisms must genetically fit with the environment
Uses the principles of Evolution to determine why we develope certain traits by seeing how they would be addaptively beneficial
- 1. Circular and Untestable
- 2. there are alternate explanations; people in industrial societies are less reliant on internal factors for survival than outward.
Nature vs. Nurture
- Nurture: The environment of the subject
- How it is studied: Twin Studies: Identical twins monozygote splits; Fraternal Twins dizygote
- Tries to determine what aspects are due to genes and what to the environment
- Can't study genes in isolation only in environment
- Traits can change even if it is genetically influenced.
- If you are predisposed towards anger it doesn't mean you must be angry.
- Mostly stable way of emotionally reacting
- Easy; Difficult; slow to adapt
- Environment has little effect on temperament
- Culture: Ideas, behaviors, attitudes and traditions exhibited by large group of people; cultures more alike than different
- Parents necessary for early survival; Peers necessary for lifelong survival
Physical prenatal developmental stages
- Zygote: conception to two weeks; multicell ball attatches to uterus wall
- Embryonic: 2wk - 8wk; babies gender
- Fetal: 8wk - birth
- Social rules about how different sexes should behave
- No gender roles in nomadic society but in agricultural there are