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Basal placentation develops when the ova...

Basal placentation develops when the ovary has-

A

Single ovule

B

Many ovules

C

Tetra locules

D

All of the above

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understand the Concept of 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. 2. **Identify the Type of Placentation**: Basal placentation is one specific type. It occurs when the ovary is structured in a particular way. 3. **Examine the Structure of the Ovary**: For basal placentation to develop, the ovary must be unilocular, meaning it has only one chamber. 4. **Determine the Number of Ovules**: In basal placentation, there is a specific arrangement where a single ovule is attached at the base of the ovary. 5. **Conclude the Answer**: Therefore, the characteristic that defines basal placentation is that the ovary has a single ovule located at its base. **Final Answer**: Basal placentation develops when the ovary has a single ovule at the base. ---
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