When true breeding pea plants with yellow seeds are crossed to plants that have green seed, all the offspring produce yellow seed. When true breeding plants with round seed are crossed to plants that have wrinkled seed, all the offspring produce round seed. If a true breeding plant with yellow, wrinkled seed is mated to a plant with green and round seed:

1) What are the genotypes of the parents?

2) What is the genotype and phenotype of the F1?

3) What are the possible gamete typed of the F1?

4) If the F1 was selfed what would be the phenotypes and their ratios in the F2?