In the context of genetic engineering, what do you mean by 'vehicle'?

Explanation

### Step-by-Step Solution:

1. **Definition of Vehicle in Genetic Engineering**: In genetic engineering, the term 'vehicle' refers to DNA molecules that are utilized to transfer genetic material (transgenes) into host cells.

2. **Understanding Vectors**: The vehicles mentioned are also known as vectors. Vectors are essential tools in genetic engineering as they facilitate the introduction of foreign DNA into a host organism.

3. **Common Types of Vectors**: One of the most commonly used vectors in genetic engineering is plasmids. Plasmids are small, circular DNA molecules that naturally occur in bacteria.

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