A type of placentation in which an axis is formed in the centre of ovary and ovary become multichambered –

Options

A. Free central
B. Marginal
C. Axile
D. Parietal

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a type of placentation where an axis is formed in the center of the ovary, and the ovary becomes multi-chambered.

2. **Defining Placentation**: Placentation refers to the arrangement of ovules within the ovary of a flower. Different types of placentation exist based on how and where the ovules are attached.

3. **Identifying Multi-Chambered Ovary**: A multi-chambered ovary indicates that the ovary is divided into several compartments or chambers, which can house multiple ovules.

4. **Recognizing the Central Axis**: The question specifies that there is an axis formed in the center of the ovary. This is a key detail that helps narrow down the type of placentation.

5. **Types of Placentation**:
- **Axial Placentation**: In this type, the ovary is divided into several chambers (multi-chambered) and an axis runs through the center, to which the ovules are attached.
- **Free Central Placentation**: This also has a central axis, but it does not have chambers; the ovules are attached to the central axis itself.
- **Marginal Placentation**: Here, the ovules are attached along the margins of a single chamber and do not involve a central axis.
- **Parietal Placentation**: In this case, the ovules are attached to the inner walls of the ovary and do not involve a central axis.

6. **Conclusion**: Based on the definitions and characteristics outlined, the type of placentation that fits the description of having an axis in the center and being multi-chambered is **Axial Placentation**.

7. **Final Answer**: The correct answer is **Axial Placentation**.

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