Unattached earlobes are dominant to attached earlobes. Cleft chin is dominant to no cleft. Parents that are heterozygous for both traits are crossed. Determine the ratio of offspring with the described trait to the total number of offspring: Unattached earlobes and cleft chin : Unattached earlobes and no cleft : Attached earlobes and cleft chin : Attached earlobes and no cleft :
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