Well-defined nucleus is absent in prokaryote Justify your statement.

Explanation

### Step-by-Step Solution:

1. **Understanding Cell Types**:
- Cells are categorized into two main types: prokaryotic cells and eukaryotic cells.
- Prokaryotic cells are considered primitive, while eukaryotic cells are more complex and are referred to as "true" cells.

2. **Definition of Nucleus**:
- A nucleus is defined as a membrane-bound organelle that contains the cell's genetic material (DNA) and is surrounded by a double membrane.
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