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| genes/biological influence |
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| the study of the relative power and limits of genetic and environmental influences on behavior |
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| every non-genetic influence, from prenatal nutrition to the people and things around us |
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| threadlike structures made of DNA molecules that contain the genes |
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| a complex molecule containing the genetic information that makes up the chromosomes |
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| the biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing a protein |
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| the building blocks of physical development |
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| the complete instruction s for making an organism, consisting of all the genetic material in that organism's chromosomes |
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| twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms |
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| twins who develop from separate fertilized eggs. They are genetically no close than brothers and sister ,but they share a fetal environment |
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| the proportion of variation among individuals hat we can attribute to genes. The heritability of a trait may vary, depending on the range of populations and environments studied |
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| the interplay that occur when the effect of one factor (such as environment) depends on another factor (such as hereditability |
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| the subfield of biology that studies the molecular structure and function of genes |
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| the study of the evolution of behavior and the mind, using principles of natural selection |
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| the principle that, among the range of inherited trait variations, hose that lead to increased reproduction and survival will most likely be passed on to succeeding generations |
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| a random error in gene replication that leads to a change |
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