How do Mendel's experiments show that traits may be dominant or recessive?

Explanation

Mendel took one tall pea (TT) plant and one short pea (tt) plant and produced progency from them. The plants grown from F 1 seeds represent first filial (F 1) generation. All F 1 plants were tall. Then Mendel self-pollinated F1 plants and found that all plants obtained in F2 progeny were not tall. Instead 75% were tall (dominant) while. remaining 25% were dwarf (recessive traits). From the experiment, he concluded the F 1 progeny is not a true breed but carries both traits. He concluded one trait is dominant over the other, that.s why plants appear tall. It is also called the law of Segregation.