An allele that will determine the phenotype if even one is present in the genotype.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref>
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An [[allele]] that will determine the [[phenotype]] if even one is present in the [[genotype]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref>