Mendel’s experiments on the mono-hybrid cross showed that the traits could either be dominant or recessive. He experimented the experiment by crossing tall (TT) and dwarf (tt) pea plants. The F1 (or filial) generation was represented by the plants that emerged as the result of fertilisation. The F1 plants were all very tall. Mendel continued by self-pollinating the plants from the filial generation, and as a result, one-fourth (1/4) of the plants produced by the F2 generation were dwarfs. Mendel came to the conclusion from this experiment that the F1 tall plants were not true-breeding, but rather, carried characteristics for both tall and dwarf heights. Because the characteristics of tallness predominated over the traits of dwarfness, some of the plants were tall.
