Endosperm in gymnosperm is

Options

A. n
B. 2n
C. 3n
D. 4n

Answer

### Step-by-Step Solution:

1. **Understanding Endosperm**: The endosperm is a tissue that provides nourishment to the developing embryo in seeds. It is crucial for the growth of the plant.

2. **Endosperm in Gymnosperms**: In gymnosperms, the endosperm is formed before fertilization. This is different from angiosperms, where the endosperm is formed after fertilization.

3. **Formation Process**: The endosperm in gymnosperms is derived from female gametophyte cells. These cells undergo mitotic divisions, which are equational divisions, leading to the formation of the endosperm.

4. **Ploidy of Female Gametophyte**: The female gametophyte cells in gymnosperms are haploid (1n).

5. **Ploidy of Endosperm**: Since the endosperm is formed from the haploid female gametophyte cells through mitotic division, the endosperm itself is also haploid (1n).

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

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

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