The endosperm in gymnosperms is

Options

A. haploid
B. diploid
C. triploid
D. none of these

Answer

### Step-by-Step Solution:

1. **Understanding Gymnosperms**:
- Gymnosperms are a group of vascular plants that do not produce flowers or fruits. They reproduce using seeds that are not enclosed in an ovary.

2. **Endosperm Definition**:
- The endosperm is a tissue that provides nourishment to the developing embryo within the seed. It is crucial for the growth and development of the embryo.

3. **Fertilization Process in Gymnosperms**:
- Unlike angiosperms, gymnosperms do not undergo double fertilization. In angiosperms, double fertilization results in the formation of a triploid endosperm, but this is not the case in gymnosperms.

4. **Nature of Endosperm in Gymnosperms**:
- In gymnosperms, the endosperm is formed before fertilization occurs. This means that it is not a product of fertilization but rather a part of the female gametophyte.

5. **Cell Type of Endosperm**:
- Since the endosperm in gymnosperms is formed from the female gametophyte, all the cells in this tissue are haploid (having a single set of chromosomes).

6. **Conclusion**:
- Therefore, the endosperm in gymnosperms is haploid.

### Final Answer:
The endosperm in gymnosperms is **haploid**.

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