Final answer:
In Mendel's monohybrid cross experiments, two different flower colors were observed in the F2 population: purple and white, in a 3:1 ratio, with 75% of plants displaying purple flowers and 25% showing white flowers.
Step-by-step explanation:
The question relates to the monohybrid cross experiments conducted by Gregor Mendel, which demonstrate the inheritance patterns of traits in pea plants. When Mendel crossed purple-flowered plants with white-flowered plants, all of the F1 generation exhibited purple flowers. Proceeding to the F2 generation, which resulted from self-pollination of the F1 plants, Mendel observed a 3:1 ratio of purple to white flowers: approximately 75% purple flowers and 25% white flowers. This outcome showed that there is no blending of traits, as none of the flowers in the F2 generation displayed a mix of white and purple.
Based on Mendel's findings, we can determine the various flower colors that will be present in the F2 population. As Mendel's historic experiments established, two different flower colors were present: purple and white. Following the 3:1 ratio discovered by Mendel, we can expect three of every four F2 plants to have purple flowers and one of every four to have white flowers when we perform a cross with similar traits.