Name the phytohormone that can cause the development of seedless fruits.

Explanation

### Step-by-Step Solution:

1. **Understanding Seedless Fruits**:
- Seedless fruits are fruits that do not contain mature seeds. Examples include grapes, tomatoes, and bananas.

2. **Identifying the Relevant Phytohormone**:
- The phytohormone responsible for the development of seedless fruits is **gibberellin**.

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