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Unformatted text preview: Psych Prelim 2 Notes Mod 6-7 Environment- every nongenetic influence, from prenatal nutrition to the people and things around us. Behavior Genetics- the study of the relative power and limits of genetic and environmental influences on behavior. Chromosomes- threadlike structures made of DNA molecules that contain the genes. DNA- a complex molecule containing the genetic info that makes up the chromos. Genes- the biochemical units of heredity that makes up the chromos; a segment of DNA capable of synthesizing a protein. Genome- the complete instructions for making an organism, consisting of all the genetic material in that organism’s chromos. Identical Twins- twins who develop from a single fert. egg that splits in two creating two genetically identical organisms. Frat. Twins- twins who develop from separate fert. eggs. they are genetically no closer than brothers and sisters, but they share a fetal environment. Temperament- a person’s characteristics emotional reactivity and intensity. Heritability- the proportion of variation among individuals that we can attribute to genes. The heritability of a trait may vary, depending on the range of populations and environments studied. Interaction- Occurs when the effect of one factor(such as environment) depends on another factor(such as heredity.) Molecular Genetics- the subfield of bio that studies the molecular structure and function of genes Evolutionary Psychology- study of evolution of behavior and the mind, using principles of natural selection Natural Selection- principle that, among the range of inherited trait variations, those that lead to increased reproduction and survival will most likely be passed on to succeeding generations Mutation- a random error in gene replication that leads to a change Gender- biological and social influenced characteristics by which people define male and female Culture- enduring behaviors, ideas, attitudes, values, and traditions shared by a group of people and transmitted from one generation to the next Norm- an understood rule for accepted and expected behavior. Norms prescribe “proper” behavior Personal Space- buffer zone we like to maintain around our bodies Individualism- giving priority to one’s own goals over group goals and defining one’s identity in terms of personal attributes rather than group identifications Collectivism- giving priority to the goals of one’s group and defining one’s identity accordingly. Aggression- Physical or verbal behavior intended to hurt someone X Chromo- sex chromo found in both men and women. Females have two x chromos; males have one. An x chromo from each parent produces a female child. Y Chromo- found only in males. When paired with and x chromo it produces a male child....
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This note was uploaded on 09/22/2008 for the course PSYCH 1101 taught by Professor Maas, j during the Fall '06 term at Cornell.
- Fall '06
- MAAS, J