The tip cell of the ascogenous hypha called the crozier is curved and divides to form three cells. Which one of the three cells gets two nuclei and what is the structure produced from it ?

Explanation

### Step-by-Step Solution:

1. **Understanding the Structure**: The tip cell of the ascogenous hypha is called the crozier. It is a curved structure that divides to form three cells.

2. **Identifying the Cells**: Among the three cells formed from the crozier, one of these cells is designated as the penultimate cell. This is the cell that will contain two nuclei.

3. **Nuclear Fusion**: The two nuclei present in the penultimate cell come from the male and female gametes. When these two nuclei fuse, they form a single diploid nucleus known as the fusion nucleus.

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