Mendel conducted experiments of plant hybridization on garden pea (Pisum sativum). His experiments showed the segregation of a single gene during inheritance. He crossed a true breeding tall plant with a true breeding dwarf plant. In the F1 generation, all the offsprings were tall. This indicated that tallness is dominant over dwarfness. When he allowed two F1 plants to self-pollinate, both tall and dwarf plants were found in the F2 generation in an approximate ratio of 3:1. The cross can be represented as shown in the figure.
