2 polar nuclei fuse together and form_______

Answer

**Step-by-Step Solution:**

1. **Understanding Polar Nuclei**: In the context of flowering plants, polar nuclei are located within the embryo sac, which is part of the ovule. The embryo sac typically contains several types of nuclei, including polar nuclei.

2. **Location of Polar Nuclei**: The polar nuclei are found in the center of the embryo sac, which is situated between the antipodal cells (located at the chalazal end) and the egg cell along with synergids (located at the micropilar end).

3. **Fusion of Polar Nuclei**: The two polar nuclei within the embryo sac undergo a process of fusion. This is a crucial step in the formation of the central cell.

4. **Formation of Central Cell Nucleus**: When the two polar nuclei fuse together, they form a single nucleus known as the central cell nucleus. This central cell nucleus is essential for the fertilization process and the development of the embryo.

5. **Conclusion**: Therefore, the correct answer to the question is that two polar nuclei fuse together to form the central cell nucleus.

**Final Answer**: Two polar nuclei fuse together to form the central cell nucleus.

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