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| the branch of iology that deals with the mechanisms of heredity. |
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| rodlike structures, found in all biological cells, that contain DNA molecules in the form of genes. |
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| the complex molecular structure of a chromosome that carries genetic info |
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| the biochemical units of heredity that govern the decelopment of an individual life. |
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| the genetic blueprint for making a complete human being. |
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| the unerlyig DNA sequence that an idividual inherits. |
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| an organisms observable properties, physical and behavioral. |
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| the evolutionary process by which some genes in a population spread more than others, causing species to change over time. |
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| advantageous physical and psychological traits that are inherited |
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| random gene copying errors that can spark evolution by natural selection |
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| a subfield that uses the principles of evolution to understand human social behavior |
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| the notion that an organisms genes are preserved not only through its own offspring but also through the offspring of genetic relatives |
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| the tendency for organisms to preferentially help others according to their genetic relatedness |
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| the tendency for organisms to help members of other species, who may later reciprocate |
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| the debate over the extent to which human behavior is determined by genetics and the environment |
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| studies that estimate genetic influences through similarities of family members who vary in their degree of genetic relatedness |
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| a statistical estimate of the percentage of the variability of a trait within a group that is attributable to genetic factors. |
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| a method of testing nature and nurture by comparing pairs of identical and fraternal twins of the same sex |
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| a method of testing nature and nurture by comparing twins and other siblings reared together with those seperated by adoption |
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| sex-typed behaviors promoted by social learning |
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| a network of beliefs about men and women that influences the way we perceive ourselves and others |
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| ones sexual preference for members of the same sex, opposite sex or both sexes |
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