Question

Which vector can clone a small fragment of DNA?

• A. Bacterial artificial chromosome
• B. Yeast artificial chromosome
• C. Plasmid
• D. Cosmid

Answer 1

The correct option is C Plasmid

• Plasmids are autonomously replicating circular extra-chromosomal DNA.
• They are the standard cloning vectors and the ones most commonly used.
• Most general plasmids may be used to clone DNA insert of up to 15 kb in size.
• One of the earliest commonly used cloning vectors is the pBR322 plasmid.
• So, the correct answer is option C.