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| having different alleles; example Aa, or Bb |
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| having the same alleles; example AA, or BB |
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the passing of genetic factors from parent to offspring
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| one of two alternative forms of a gene at a specific location on a chromosome; in organisms that reproduce sexually, each offspring inherits one allele from each parent. |
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| the observable physical traits of an organism (e.g., fur color, stem height, blood type) |
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| the genetic composition of an organism; the combination of alleles that determine a trait |
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| pertaining to an allele that is expressed in an organism�s phenotype |
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| pertaining to an allele whose phenotypic expression in an organism is masked by the dominant allele |
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| a cell or an organism that is genetically identical to another cell or organism |
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| the technology of combining fragments of DNA cut from different organisms to form recombinant DNA |
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| in an experiment, the variable that is manipulated by the scientist; the variable being tested |
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| the variable measured in an experiment |
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| an organism (detritivore) that consumes dead organisms and waste products |
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| an organism that uses energy from sunlight or chemical substances and inorganic compounds to synthesize organic compounds |
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| the membrane bound organelle in eukaryotes that contains genetic information and controls cell growth and reproduction |
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| microscopic hair-like projections on the surface of some cells that function in movement |
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| a long slender whip-like projection in some unicellular organisms that functions in movement, e.g., Euglena |
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| in certain protozoans, such as amoebae, a temporary projection of the cytoplasm used to capture food or move |
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