Name the cell from which the endosperm of coconut develops. Give the characteristic features of endosperm of coconut

Explanation

### Step-by-Step Solution:

1. **Identify the Cell of Origin**:
The endosperm of the coconut develops from the **primary endosperm nucleus (PEN)**. This nucleus is formed during the process of double fertilization, where one male gamete fuses with the egg cell, and the other male gamete fuses with the two polar nuclei in the ovule.

2. **Explain the Formation Process**:
The primary endosperm nucleus is triploid (3n) because it is formed by the fusion of one male gamete with the two polar nuclei. This triploid nucleus undergoes multiple mitotic divisions to form the endosperm tissue.

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