Phenotype perfectly predicts genotype in 

The round shape of pea seeds, inflated pea pods and the violet color of pea flowers are dominant traits. Thus, it is expressed the same in both homozygous and heterozygous conditions. But the flower coloring snap dragon (dog flower)shows incomplete dominance. So, the homozygous dominant has a red color, while homozyogus recessive has a white color and heterozygous has a pink color.