Write the help of a schematic diagram the location and the role of the following in a transcription unit :
Promoter, Structural gene, Terminator.

Explanation

### Step-by-Step Solution:

1. **Understanding Transcription**:
- Transcription is the process of synthesizing RNA from a DNA template. In eukaryotes, this process involves three main steps: initiation, elongation, and termination.

2. **Schematic Diagram**:
- Draw a double-stranded DNA molecule. Label the two strands as 3' to 5' and 5' to 3'.
- Mark the following components on the DNA:
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