Type of fruit seen in a plant, with whose seeds the carrot grass is imported as a seed contaminant

Options

A. Legume
B. Caryopsis
C. Nut
D. Cypsela

Answer

To answer the question regarding the type of fruit associated with the seeds that contaminate carrot grass, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Carrot Grass**: Carrot grass is an invasive species that was introduced to India and is known for causing pollen allergies. It spreads its pollen through the wind, which can lead to allergic reactions in some individuals.

2. **Identifying Seed Contaminants**: The question asks about the type of fruit that contains seeds which are imported as a contaminant along with carrot grass. We need to analyze the options provided.

3. **Evaluating the Options**:
- **Legume**: This type of fruit is associated with pulses. Since carrot grass is a grass and not a legume, this option can be eliminated.
- **Caryopsis**: This is a type of dry fruit that contains a single seed, where the ovary wall is fused with the seed coat. This characteristic makes it a strong candidate for seed contamination.
- **Nut**: A nut is also a dry fruit but does not have a fused ovary wall and seed coat. It does not crack upon maturation, making it less likely to be involved in seed contamination.
- **Crysela**: This is another type of dry fruit, but like the nut, it does not crack open to release seeds, making it an unlikely option for contamination.

4. **Conclusion**: Based on the analysis, the type of fruit that is associated with the seeds contaminating carrot grass is **Caryopsis**. This is the correct answer.

### Final Answer:
The type of fruit seen in a plant, with whose seeds the carrot grass is imported as a seed contaminant, is **Caryopsis**.

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