Gregor Mendel chose pea plants for his experiments because they offered several advantages:

1. Easy to Grow and Maintain: Pea plants are relatively easy to cultivate and require minimal care. This allowed Mendel to grow large numbers of plants in a controlled environment.

2. Short Generation Time: Pea plants have a short generation time, meaning they grow and reproduce quickly. This allowed Mendel to study multiple generations in a relatively short period, accelerating his research.

3. Distinct, Easily Observable Traits: Pea plants exhibit clear and contrasting traits, such as flower color (purple vs. white), seed shape (round vs. wrinkled), and plant height (tall vs. short). These easily observable traits made it simple to track inheritance patterns.

4. Self-Pollination: Pea plants can self-pollinate, meaning they can fertilize themselves. This allowed Mendel to control the parentage of his plants and ensure that his crosses were pure. He could also cross-pollinate plants manually by transferring pollen from one plant to another.

5. Controlled Crosses: Mendel could control the mating of his pea plants by removing the anthers (male reproductive parts) from one plant and transferring pollen from another plant. This allowed him to study the inheritance of specific traits with precision.

6. Large Number of Offspring: Pea plants produce a large number of offspring, which provided sufficient data for Mendel to analyze and draw conclusions.

7. Disponível em várias variedades: Different varieties of pea plants were available with contrasting traits, providing Mendel with a diverse range of subjects for his experiments.

Todos esses fatores combinados tornaram as plantas de ervilha um organismo modelo ideal para o trabalho inovador de Mendel sobre herança. Seus experimentos com essas plantas lançaram as bases para a genética moderna.