If true breeding flowered plants are crossed with true breeding red flowered plants what color will F1 be?

If true breeding flowered plants are crossed with true breeding red flowered plants, what will be the flower color of the F1 plants?|||It depends on the relative penetrance of the pigments in the two cultivars. In some plants red may be dominant so the entire heterozygous F1 generation appears red.





However the alleles may not be fully dominant/recessive so they show an incomplete dominance with intermediate character. One red allele and one white allele in the heterozygote F1 could produce a pink intermediate phenotype.





Some alleles are equal in their expression so that a red and white heterozygous F1 pair of alleles yields a checkered, speckled or streaked bicolor petal. These are codominant when each are expressed.