howardjayden673 howardjayden673 18-05-2020 Biology contestada What did Mendel's cross-pollination of pea plants prove? A. Inheritance of certain factors is dependent upon the genetic code. B. Certain factors are dominant, and other factors are recessive. C. All the cells in an organism carry the same hereditary factors. D. Crossing a tall plant with a tall plant will always result in a tall plant.