Answer:
Green was dominant over yellow. So they were all green if you are talking about the first generation. The second generation would be a mix
Explanation:
A dihybrid cross is defined as a breeding experiment involving parental generation chromosomes that have two contrasting traits. The individual organisms involved in this can be either homozygous or heterozygous.
This kind of cross pollination experiments led to the development of George Handel's Law of Independent Assortment.
Hope it helps.