What are cloning vectors? Name one common vector used in experiments.

Explanation

### Step-by-Step Solution:

1. **Definition of Cloning Vectors**: Cloning vectors are specialized DNA molecules that can carry a foreign DNA fragment and replicate within a host cell. They serve as vehicles to transfer genetic material into a host organism for cloning purposes.

2. **Function of Cloning Vectors**: The primary function of cloning vectors is to facilitate the insertion and replication of a specific DNA segment. This allows researchers to produce multiple copies of the DNA fragment for further study or manipulation.

3. **Types of Cloning Vectors**: Cloning vectors can be categorized mainly into two types:
- **Plasmids**: These are self-replicating, circular DNA molecules found in bacteria. They can carry foreign DNA and replicate independently of chromosomal DNA.
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