Question

What did Mendel's cross pollination of pea plants prove

A crossing a tall plant with a tall plant will always results in a tall plant

B all the cells in an organism carry the same hereditary factors

C inheritance of certain factors is dependent upon the genetic code

D certain factors are dominant and other factors are recessive

Answer 1

I'm pretty sure that the answer is D.

Answer 2

Answer: The correct answer is- D certain factors are dominant and other factors are recessive.

Mendel was interested in knowing the offspring that is produced from the cross pollination (that is from two different plants) as he wanted to study different traits of pea plant.

For doing so, he first removed the anthers of one plant (to prevent self pollination) and then transferred the pollens of one plant into the stigma of another plant.

When he allowed the cross pollination of purebred pea plant with other plant, he observed that some factors are dominant (such as tall height of pea plant, which masks the expression of recessive factors) and other are recessive (such as dwarf height of pea plant).

Thus, option D) is the right answer.