Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Vector, cloning
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Vector, cloning: A fragment of DNA into which another DNA fragment can be integrated. Cloning vectors are used to introduce foreign DNA into host cells, where that DNA can be reproduced (cloned) in large quantities. Examples of cloning vectors are plasmids, cosmids, bacterial artificial chromosomes (BACs), and yeast artificial chromosomes (YACs).