The polar nuclei are present in

Options

A. the egg.
B. the synergid.
C. the antipodal.
D. the central cell.

Answer

To solve the question regarding the presence of polar nuclei, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Embryo Sac**:
- The embryo sac is a crucial structure in angiosperms (flowering plants) that contains the female gametes. It typically consists of seven cells and eight nuclei.

2. **Identify the Components of the Embryo Sac**:
- The embryo sac consists of three antipodal cells located at the chalazal end, two synergids and one egg cell at the micropilar end (collectively known as the egg apparatus), and one large central cell.

3. **Locate the Polar Nuclei**:
- The central cell is the largest cell in the embryo sac. It contains two nuclei known as polar nuclei. These nuclei are essential for the fertilization process in plants.

4. **Conclude the Answer**:
- Since the question specifically asks where the polar nuclei are located, the answer is that the polar nuclei are present in the central cell of the embryo sac.

### Final Answer:
The polar nuclei are present in the **central cell** of the embryo sac.

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