Question

gregor mendel studied pea plants to determine the patterns of inheritance. what is not a reason mendel used pea plants in his experiments? check all that apply. they reproduced sexually. they were drought resistant. they had traits that were easy to observe. they only had two traits to study.

Explanation:

1. For "They reproduced sexually": Mendel needed sexual reproduction (with gametes) to study inheritance of traits, so this is a reason he used pea plants.
2. For "They were drought resistant": Mendel's experiments focused on inheritance, not drought resistance. Drought resistance wasn't a factor in his choice, so this is not a reason.
3. For "They had traits that were easy to observe": Pea plants have distinct, observable traits (e.g., flower color, seed shape), which was important for his experiments, so this is a reason.
4. For "They only had two traits to study": Pea plants have many traits (he studied seven pairs), not just two. So this is not a reason.

Answer:

B. They were drought resistant, D. They only had two traits to study