The fruits that develop only from ovary are known as ..............

Options

A. Parthenocarpic fruits
B. True fruits
C. False fruits
D. Apomictic fruits

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of fruits that develop solely from the ovary of a flower.

2. **Identifying the Options**: We have four options to consider:
- Parthenocarpic fruit
- True fruit
- False fruit
- Apometric fruit

3. **Analyzing Each Option**:
- **Parthenocarpic Fruit**: This type of fruit develops without fertilization. Therefore, it does not solely develop from the ovary, making this option incorrect.

- **True Fruit**: This fruit develops specifically from the ovary after fertilization. The wall of a true fruit is called the pericarp, which is divided into three layers: the outer layer (exocarp), the middle layer (mesocarp), and the inner layer (endocarp). This option fits the description given in the question.

- **False Fruit**: A false fruit develops from other parts of the flower in addition to the ovary. For example, in apples, the thalamus (the thickened part of the stem) contributes to the fruit, making this option incorrect.

- **Apometric Fruit**: This term is not commonly used in the context of fruit development. The correct term related to seeds is "apometric seed," which refers to seeds that develop without fertilization. Thus, this option is also incorrect.

4. **Conclusion**: Based on the analysis, the correct answer to the question is **True fruit**, as it is the type of fruit that develops exclusively from the ovary.

**Final Answer**: The fruits that develop only from the ovary are known as **True fruit**.

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