Bob Jones Life Science - Chapter 6
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| genetics | The study of the inheritance of traits from one generation to the next.
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| cross | The mating of organisms to test how they inherit traits
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| allele | One form of a gene for particular trait
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| purebred | Having the same alleles for a particular trait
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| hybrid | Having two different alleles for a particular trait
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| dominant | The characteristic that is expressed even when a recessive allele is present
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| recessive | The characteristic that is expressed only in the absence of a dominant allele
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| phenotype | An organism's physical characteristics; the physical expression of an organism's genes
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| genotype | An organism's genetic makeup
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| Punnett square | A diagram used to visualize genetic crosses
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| incomplete dominance | A type of inheritance in which the alleles for a particular characteristic are neither dominant nor recessive, resulting in a "blending" of the two expressions of the gene
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| codominance | The expression (but not blending) of both alleles for a trait in an organism
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| polygenic inheritance | An inheritance pattern in which two or more genes work together to produce a single trait
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| multiple alleles | An inheritance pattern in which there are more than two possible alleles for a single trait, such as human ABO blood types
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| x chromosome | The female sex chromosome
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| y chromosome | The male sex chromosome
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| sex-linked trait | A characteristic that is coded for by a gene on the X chromosome or the Y chromosome
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| carrier | An individual who has one allele for a recessive trait and thus does not exhibit that trait but can pass the allele for the trait on to its offspring
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