Gibberellins help to elongate and improve the shape of the following fruits.

Options

A. banana
B. orange
C. apple
D. tomato

Answer

**Step-by-Step Solution:**

1. **Understanding Gibberellins**: Gibberellins are a class of plant hormones that play a crucial role in promoting growth and elongation of plant cells. They are particularly effective in influencing fruit development.

2. **Identifying Fruits Affected by Gibberellins**: The question asks which fruits are affected by gibberellins in terms of elongation and shape improvement. The fruits mentioned are banana, orange, apple, and tomato.

3. **Analyzing Each Fruit**:
- **Banana**: While gibberellins can influence growth, ethylene is the primary hormone involved in the ripening and shape of bananas.
- **Orange**: Similar to bananas, oranges are primarily influenced by other hormones, including ethylene, rather than gibberellins.
- **Tomato**: Tomatoes also utilize ethylene for ripening, and gibberellins play a minor role in their growth.
- **Apple**: Apples are significantly influenced by gibberellins. These hormones help in increasing the size of the fruit, enhancing its shape, and delaying senescence (aging), which allows the fruit to remain marketable for a longer period.

4. **Conclusion**: Based on the analysis, the fruit that is most notably affected by gibberellins in terms of elongation and shape improvement is the apple.

**Final Answer**: Gibberellins help to elongate and improve the shape of apples.

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