The phenotype is the physical manifestation of an organism’s allellic combination. For example, in pea plants, if the red allele is dominant and the white allele is recessive, only two phenotypes are possible. Both the plants with red-red and red-white genotypes will have the red phenotype, while the plants with the white-white genotype will have the white phenotype. Recessive alleles will not show if there is a single dominant allele present. But dominant alleles always take priority over recessive alleles. In this case, the widow’s peak is dominant and will always show unless there are two recessive alleles present. Widow’s peak is dominant but it is not frequent in the population. It is known as a wild type.