Answer:
F1 generation refers to the first filial generation of the offspring from the parents, while F2 generation is the second filial generation of the offspring, generated through the inbreeding of F1 individuals. The F1 generation results from cross-pollination of two-parent (P) plants and contained all purple flowers. The F2 generation results from the self-pollination of F1 plants and contained 75% purple flowers and 25% white flowers. This type of experiment is known as a monohybrid cross.