Fusion of male gamete with dipoloid secondary nucleus produces _________ and the process is known as ________ (respectively).

Options

A. PEN, Triple fusion
B. PEN, Syngamy
C. Zygote, Syngamy
D. 7-nucleated and 8-celled

Answer

To solve the question regarding the fusion of male gamete with diploid secondary nucleus, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Double Fertilization**:
- In plants, there is a unique process called double fertilization, which involves two types of fusions.

2. **Identifying the Fusions**:
- The first type of fusion is called **syngamy**. This occurs when one male gamete fuses with the egg nucleus, resulting in the formation of a **zygote**.
- The second type of fusion is known as **triple fusion**. This occurs when the second male gamete fuses with the diploid secondary nucleus.

3. **Result of Triple Fusion**:
- The result of the triple fusion is the formation of a **triploid cell** known as the **primary endosperm nucleus (PEN)**.

4. **Final Answer**:
- Therefore, the fusion of the male gamete with the diploid secondary nucleus produces **primary endosperm nucleus (PEN)**, and the process is known as **triple fusion**.

### Final Answer:
The fusion of male gamete with diploid secondary nucleus produces **primary endosperm nucleus (PEN)** and the process is known as **triple fusion**.

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