Mendel's pea plants exhibited the following phenotypes:
2. What is seen in the F1 generation? We always see only one of the two parental phenotypes in this generation. But the F1 possesses the information needed to produce both parental phenotypes in the following generation. The phenotype of the F1 is dominant to the trait that disappears in the F1.
3. The F2 generation always produced a 3:1 ratio where the dominant trait is present three times as often as the recessive trait.