Ovary having basal placentation is

Options

A. Monocarpellary bilocular
B. Bicarpellary, syncarpous and unilocular
C. Multicarpellary, syncarpous and unilocular
D. Syncarpous with two or more carpels.

Answer

To determine which ovary has basal placentation, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Basal Placentation**: Basal placentation refers to the arrangement of ovules in the ovary where the ovule is attached at the base of a unilocular ovary. This is a key characteristic of certain flowering plants.

2. **Identify the Family**: The family known for having basal placentation is Asteraceae, commonly referred to as the sunflower family. This is important to remember as it provides a specific example.

3. **Examine the Ovary Structure**: In the case of basal placentation, the ovary is typically bicarpillary, meaning it has two carpels. Additionally, it is syncarpous, which indicates that the carpels are fused together.

4. **Check for Ovule Type**: The ovule in basal placentation is usually a single anatropos ovule. An anatropos ovule is one that is inverted, and in this case, it is attached at the base of the ovary.

5. **Determine the Locularity**: The ovary with basal placentation is unilocular, meaning it contains only one locule (chamber). This is a direct result of having a single ovule attached at the base.

6. **Conclusion**: Based on the features of basal placentation, the correct answer is that the ovary is bicarpillary, syncarpous, and unilocular.

### Final Answer:
The ovary having basal placentation is characterized by being bicarpillary, syncarpous, and unilocular.

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