Heterozygote that fully resembles one homozygote phenotypically but not the other.
Complete dominance actually is the most familiar of dominance-recessive relationships. That is, complete dominance in a monohybrid cross gives rise to 3:1 ratios. The homozygote that the heterozygote fully resembles is, of course, the homozyogous dominant genotype.
See also codominance and incomplete dominance.
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