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Which vector can clone only a small fragment of DNA?

1. Bacterial artificial chromosome
2. Yeast artificial chromosome
3. Plasmid
4. Cosmid

Correct answer: Plasmid

Solution

Plasmids are small circular DNA vectors designed to carry relatively small DNA inserts, typically much smaller than cosmids, BACs, or YACs. Because of their limited capacity, they are used for cloning only small fragments of DNA.

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