Question

Okay, I totally don't get this. It says: In peas, the alele for green pods(G) is dominant over the alele for yellow pods(g). Below shows the phenotypes of offspring produced from a cross of two plants with green pods.

Green pods - 27 offspring
yellow pods - 9 offspring

What are the two genotypes of the parents? How do you know?

Answer 1

If both the plants have green pods, but some of the offspring came out with yellow, but most green, one must be GG and the other Gg. Ha! I answered my own question!