In one of his experiments with pea plants, Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation $$F_1$$ only tall plants appear.
(i)When the $$F_1$$ generation plants were self-fertilized, he observed that in the plants of second-generation $$F_2$$ both tall plants and dwarf plants were present. Why did it happen? Explain briefly.
(ii)What happens to the traits of the dwarf plants in this case?