chapter 2 module 3
Terms
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- culture
- the shared attitudes, beliefs , norms and behaviors of a group communicated from one generation to the next; may functions to ensure a group's survival
- fraternal twins
- twins who develop for m separate eggs , they are gentically no closer that n brothers and sisters,but they share a fetal environment
- mutation
- Random errors in gene replication that lead to a change in the individual's genetic code; the source of all genetic diversity
- collectivism
- cultural style that places group goals or needs ahead of personal goals or needs and defines personal identity in terms of of group identification
- identical twins
- twins who develop form a single fertilized egg that splits in two , creating two genettically identical organsims
- enviornment
- every nongenetic influence, from prenatal nutrition to the people and things around us
- evolutionary pschology
- the study of the evolution of behavior and the mind,using principles of natural selection
- chromosomes
- threadlike sturctures made of DNA molecules that contain the genes
- behavior genetics
- within psychology , the perspective that forcuses on the relative power and limits of genetic and environmental influences on behavior- extent to which our genes and our environment influence our individual differences.
- individualism
- cultural style that places personal goals or needs ahead of group goals or needs and defines identity in terms of personal attributes rather than group identification
- heritability
- The proportion of variation among individuals that we can attribute to genes
- norms
- understood rules for accepted and expected behavior; norms prescribe "proper behavior"
- natural selection
- the principlethat, amoung the range of inherited trait variations, those contributing to survival will most likely be passed on to succeeding generations
- genome
- the complete instructions for making an organism, consisting of all the genetic material in its chromosomes
- genes
- A segment of DNA ; biochemical units of heredity that make up the choromosomes and direct how cells become specialized for various functions( such as brain , lungs heart , hair ) during prenatal development.
- DNA(deoxyribonucleic acid)
- a complex molecule containing the genetic information that makes up the chromosomes