Give the nature of nucleus in the prokaryotic cells.

Explanation

### Step-by-Step Solution:

1. **Definition of Prokaryotic Cells**:
- Prokaryotic cells are the simplest and most ancient forms of life. They lack a well-defined nucleus and other membrane-bound organelles.

2. **Nature of the Nucleus in Prokaryotic Cells**:
- In prokaryotic cells, the region that contains the genetic material is known as the **nucleoid**.

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