In the snapdragon flower, incomplete dominance is observed. So, in the heterozygous condition, the flowers are pink colored, in homozygous dominant condition the flowers are red colored and the homozygous recessive condition, the flowers are white colored.
On crossing pink flowers, the observed phenotypes nd the genotypes are given in the figure.
The crossing of pink to pink flower result in 25% red, 50% pink and 25% white flowers.