Upon fertilization, which structure develop from ovary?

Options

A. Testa
B. Tegmen
C. Fruit
D. Perisperm

Answer

**Step-by-Step Solution:**

1. **Understanding the Ovary Structure**: The ovary is a part of the female reproductive system in flowering plants. It contains ovules, which are the structures that develop into seeds upon fertilization.

2. **Identifying the Components**: Within the ovary, there are several components, including the ovule, which consists of parts like the hilum, funiculus, micropyle, integuments, and the nucellus. The ovule is crucial for seed development.

3. **Fertilization Process**: Upon fertilization, the ovule undergoes changes. The sperm cell fertilizes the egg cell within the ovule, leading to the formation of a zygote.

4. **Development of Structures**: After fertilization, the ovary itself develops into a fruit. The outer and inner integuments of the ovule develop into the seed coat, known as the testa and tegmen, respectively.

5. **Formation of Perisperm**: The nucellus, which nourishes the embryo sac, can also contribute to the seed structure in some cases, forming what is known as perisperm. However, this is not always present in seeds.

6. **Conclusion**: Therefore, the structure that develops from the ovary upon fertilization is the fruit.

**Final Answer**: The structure that develops from the ovary upon fertilization is the fruit.

---