Question

Red flowered snapdragons are crossed with white flowered, producing all pink snapdragons in the F1. What would you expect if you crossed Pink with White?

Select the correct answer:
3/4 pink, 1/4 white
1/2 pink, 1/2 white
all pink

Answer 1

50% white and 50% pink, consider white as aa and consider pink as ab, when you cross them it's like you make generation with aa and ab alleles, and that because every offspring takes one allele from each of the parents.