Blog 12 Look up Gregor Mendel and his pea plant experiments Why does P1 look all alike and F1 looks very different?

When Mendel cross-pollinated smooth yellow pea plants with wrinkly green peas every single pea in the F1 was the same as the parents. Somehow, the yellow round peas dominated the green wrinkly ones. Then he notice there are two kinds  of traits - dominant and recessive. The round yellow pea were the dominant one and the green peas were the recessive one. He also learned that each trait is determined by "units" or "factors" and not called genes. He repeated the experiment many times and found out the generation had a 3:1 ratio of yellow to green and round to wrinkly.