Q. With reference to Mendel's selection of pea plant for his experiments, consider the following statements:

1. Pea plant can be easily grown and maintained.
2. It is naturally self-pollinating but can also be cross-pollinated.
3. It possesses several contrasting characters.
4. It is an annual plant.

Which of the above is / are correct?
Answer: All of the above
Notes: All four statements are correct. Mendel selected pea plants because they are easy to cultivate and maintain, can self-pollinate and allow for controlled cross-pollination, display several clear contrasting traits, and are annual plants which complete their life cycle in one season, allowing quick observation of results.