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11 Cards in this Set
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- Back
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behavior genetics
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the study of the relative power and limits of genetic and environmental influences on behavior
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environment
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every nongenetic influence, from prenatal nutrition to the people and things around us
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chromosomes
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threadlike structures made of DMA molecules that contain genes
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DNA
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complex molecule containing the genetic information that makes us chromosomes
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genes
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the biochemical units of heredity that make up the chromosomes, a segment of DNA capable of synthesizing a protein
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genome
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the complete instructions for making an organism, consisting of all the genetic material in that organisims chromosomes
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identical twins
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twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisims
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fraternal twins
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twins who develop from separate fertilized eggs. They are genetically no closer than brothers and sisters, but they share a fetal environment
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temperament
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a persons characteristic emotional reactivity and intensity
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interaction
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the interplay that occurs when the effects of one factor (such as environment) depends on another factor (such as heredity)
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molecular genetics
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the subfield of biology that studies the molecular structure and function of genes
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