Name the technique which was used in producing 'Dolly' the sheep.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Context**: The question asks for the technique used to produce Dolly the sheep, which was a significant event in the field of genetics and cloning.

2. **Identifying the Technique**: The technique used to produce Dolly is known as "cloning." More specifically, it involves a method called "somatic cell nuclear transfer."

3. **Explaining Somatic Cell Nuclear Transfer (SCNT)**:
- In SCNT, the nucleus of a somatic cell (a non-reproductive cell) is transferred into an egg cell that has had its nucleus removed.
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