A monohybrid cross between a red-flowered snapdragon (Antirrhinum majus) and a white flowered variety does not produce red or white flowered plants in Fl as expected from mendelism. Instead the flowers are pink, i.e. intermediate between the two parents. This is because neither red flower colour nor white is dominant, but each allele has its influence in color development and the hybrid appears pink. If the Fl pink flowers are self-pollinated, the F2 progeny shows red, pink and white flowered plants in the proportion 1: 2 : 1. It may be recalled that this is the same genotypic ratio that Mendel obtained in garden peas. The difference is that in the present case the heterozygous progeny is distinct in appearance from the homozygotes. The name intermediate inheritance is also given to crosses where F1 hybrids show incomplete or partial dominance with no phenotypic resemblance to either parent. This type of inheritance has been found in crosses involving many other plants.