In the 1800s, the Austrian monk Gregor Mendel used pea plants to study patterns of heredity. He observed that traits were inherited in certain, repeating ratios. Which of the following hypotheses did Mendel form as a result of his observations?
A. Organisms can inherit up to four copies of a gene for each trait.
B. Organisms always display the same traits displayed by its parents.
C. Organisms inherit two copies of a gene for each trait, one from each parent. D. Organisms only inherit one copy of a gene for each trait.
