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14 Cards in this Set
- Front
- Back
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Behavior Genetics
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The study if the relative power and limits of genetic and environmental influences on behavior.
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Environment
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Every non-genetic influence, from prenatal nutrition to the people and things around us.
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Chromosomes
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Threadlike structures made of DNA molecules that contain the genes.
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DNA (deoxyribonucleic acid)
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A complex molecule containing the genetic information that makes up the chromosomes.
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Genes
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The biomedical units of heredity that make up the chromosomes; segments 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 that organism's 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 organisms.
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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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Heritability
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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.
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Interaction
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The interplay that occurs when the effect 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 genetics.
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Evolutionary Paychology
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The study of the evolution of behavior and the mind, Usonian principles of natural selection.
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Natural Selection
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The 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.
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Mutation
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The random error in gene replication that leads to a change.
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