Question

Complete the punnett square for a cross between a homozygous red flowered snapdragon (rr) and a homozygous white flowered snapdragon (r'r')

Answer 1

Red-flowered snapdragon have a homozygous genotype rr (both alleles are the same)
White-flowered snapdragon have a homozygous genotype r'r'
Gamet for the red-flowered snapdragon is r
Gamet for the white-flowered snapdragon is r'.
F1 generation will have all heterozygous genotypes rr’.