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| the passing of traits from parents to offspring |
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a characteristic that an organism can pass on to its offspring through its genes |
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| the scientific study of heredity |
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| the joining of a sperm and an egg |
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| the offspring of many generations that have the same traits |
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| the set of information that controls a trait ;a segment of DNA on a chromosome that codes for a specific trait |
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| the different forms of a gene |
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| an allele whose trait always shows up in the organism when the allele is present |
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| an allele that is masked when a dominant allele is present |
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